Entries |
Document | Title | Date |
20080210882 | Multi-stage waveform detector - A waveform detector may include multiple stages. | 09-04-2008 |
20080224061 | Compton Camera Configuration and Imaging Method - An approach for the selection of Compton camera shapes, configurations, positions, orientations, trajectory paths, and detector element sets is provided for collecting data for analysis using the surface integral and integral-of-line-integral methods of reconstruction Compton data. Methods are introduced for (1) selecting one or more imaging lines through a radioactive distribution for which approximations of integrals of radioactivity are to be derived, (2) selecting and using Compton camera relative positions, relative orientations, and detector element sets that “correspond to” the selected imaging lines to collect the needed data; and (3) deriving approximations of integrals of radioactivity along those imaging lines. This methodological approach is used to reconstruct line integrals, cross-sections, local volumes, parallel projections, and cone-beam projections of radioactive distributions. | 09-18-2008 |
20080237482 | Variable collimation in radiation detection - Apparatus for detecting radiation emitted from a number of volume elements of a body. The apparatus includes a first plurality of detector elements, each detector element being configured to output signals indicative of an intensity of radiation that is incident thereon. The apparatus also includes a first plurality of adjustable collimator channels, each adjustable collimator channel being associated with and being positioned between a respective detector element and the body, each adjustable collimator channel having a second plurality of dimensional configurations defining respective different sets of the volume elements from which emitted radiation impinges on the respective detector element. A processor computes a radiation intensity from at least a portion of the volume elements in response to the signals output by the detector elements in at least two of the dimensional configurations of the adjustable collimator channels. | 10-02-2008 |
20080251733 | Multiple waveband millimetre and sub-millimetre wave detection system - A detection system operable at millimetre or sub-millimetre wavelengths includes detection means adapted to detect radiation at two distinct wavebands, wherein a first waveband is chosen such that it has a relatively high atmospheric absorbency to electromagnetic radiation, and the second waveband is chosen to have a relatively low atmospheric absorbency to electromagnetic radiation. The system is further adapted to take measurements from at least two different regions on a target, and to process the measurements to give an indication that the target contains an object of interest. The processing may comprise comparing measurement differences at a given waveband to reference data obtained from test measurements, or from computer models of targets. The detection system provides the ability to detect objects of interest without the need to provide a millimetric or sub-millimetric image of the target. | 10-16-2008 |
20080272309 | X-Ray Detector With Correction for Scattered Radiation - The invention refers to X-ray devices, an X-ray detector and a method of correcting intensity signals. An X-ray detector then comprises for determining the intensity of X-rays, which comprise a proportion of primary radiation having an irradiation direction and a proportion of scattered radiation, at least a first sensor elements, which are each provided for converting the X-rays into first and second intensity signals, and a filter element, which is provided for decreasing the proportion of scattered radiation in the intensity of the X-rays, wherein the second sensor elements are arranged in irradiation direction behind the filter element and wherein the first sensor element fastened to the filter element is provided for determining the intensity of the X-rays before leaving the filter element. The proportion of the scattered radiation calculated from the measuring data of the first and second sensor elements is provided for correcting the second intensity signals for the following image generation. | 11-06-2008 |
20080277591 | Directional radiation detector - A method for imaging a body, including scanning the body so as to generate a tomographic image thereof, and analyzing the tomographic image to determine a location of a region of interest (ROI) within the body. The method includes providing single photon counting detector modules, each of the modules being configured to receive photons from a respective direction and to generate a signal in response thereto. The method further includes coupling each of the modules to a respective adjustable mount, adjusting each of the adjustable mounts so that the direction of the module coupled thereto is aligned with respect to the location so as to receive radiation from the ROI, operating each of the modules to receive the photons from the ROI, and, in response to the signal generated by each of the modules, generating a single photon counting image of the ROI. | 11-13-2008 |
20080283765 | Multi-stage waveform detector - A waveform detector may include multiple stages. | 11-20-2008 |
20080302971 | Variable multi-stage waveform detector - A variable waveform detector may include multiple stages. | 12-11-2008 |
20080315110 | Radiation measurement using multiple parameters - An improved radiation detection device measures a broad range of dose rate levels. According to one arrangement, the radiation detection device calculates a radiation value based on, gamma count information representing counts for different energy levels of radiation in a radiation field as well as a radiation intensity indicator value (e.g., photomultiplier tube anode DC current, measured directly by conventional Analog to Digital Converters or indirectly by power or current consumption information indicating how much energy is required to maintain a photomultiplier tube at a constant voltage) that is at least proportional to an amount of overall radiation energy detected in the radiation sample. Based on a combination of the gamma count information and the radiation intensity indicator value, a controller associated with a corresponding radiation detection device can calculate a radiation dose rate associated with the received radiation sample. | 12-25-2008 |
20090008567 | Variable multi-stage waveform detector - A variable waveform detector may include multiple stages. | 01-08-2009 |
20090078882 | DEVICE AND ARRANGEMENT FOR SENSING AND DISPLAYING RADIATION - An arrangement for detecting and initiating indication of doses of radiation includes radiation dose receiving elements and function handling elements for storing and displaying received radiations/radiation doses. The arrangement is operable by one or several power sources, and includes one or several portable meters exhibiting miniature external dimensions and having internal power sources. The respective meter is provided with radiation receiving elements and function handling elements. Each meter includes one or several preferably continuously connected first components, requiring low power, and temporarily connectable second components, requiring increased or increasing power in relation to the low power. One or several third components, handling the temporary connection and disconnection of the second component or components, is/are included. The first components are activated at low radiation intensities and the second components are connected when high radiation intensities are occurring. The third components connect and disconnect the second components at the different intensities. | 03-26-2009 |
20090134337 | HYBRID RADIATION DETECTION SYSTEM - A system for combining the spectral data from multiple ionizing radiation detectors of different types and having different photopeak energy resolutions. First, baseline estimation is performed on each spectral histogram separately, discerning peak regions from underlying continuum using respective peak response functions. All spectra are subsequently rebinned to the same energy calibration and the peak spectra are convolved to produce a single convolution spectrum. All peak counts are redistributed locally according to the convolution spectrum in energy regions proportional to respective local energy resolution. The summation of these redistributed peak spectra can then be analyzed as a single spectrum using a common photopeak response and energy calibration. This process can be embodied in software or firmware. A preferred hybrid system might include a combination of lower resolution, higher efficiency detectors and higher resolution, lower efficiency detectors. | 05-28-2009 |
20090140159 | RADIATION DETECTOR AND RADIATION DETECTING METHOD - A radiation detector | 06-04-2009 |
20090236537 | SYSTEM AND METHOD CAPABLE OF SIMULTANEOUS RADIOGRPAHIC EXAMINATION AND RADIOACTIVE MATERIAL INSPECTION - The present invention relates to the field of radiographic examination and radioactive material inspection, and provides a system and a method capable of simultaneous radiographic examination and radioactive material inspection. The system comprises a radiographic examination system and a radiation monitor; wherein the radiographic examination system comprises an accelerator and a synchronization controller, and the radiation monitor comprises a detector, a front end circuit, a signal transmission controller, a data collecting, analyzing and processing computer, an alarm device and so on. The present invention combines the radiographic examination system and the radiation monitor tightly so that the radioactive material inspection can be executed while the radiographic examination is performed, thereby the examination efficiency is improved and the occupied area of the system is reduced. | 09-24-2009 |
20090236538 | MOBILE RADIATION THREAT IDENTIFICATION SYSTEM - A system, method, and mobile vehicle, identify materials associated with radiation that has been detected. A set of radiation data associated with radiation from at least one radiation source is received from a set of radiation sensors mechanically coupled to the mobile vehicle. At least one histogram is generated based on the set of radiation data. The at least one histogram represents a spectral image of radiation from the radiation source. The at least one histogram is compared to multiple spectral images associated with known materials. The at least one histogram is determined to substantially match at least one of the multiple spectral images. A determination is made as to whether the material is a hazardous material. Personnel are notified that the at least one radiation source is a hazardous material in response to determining that the material associated with the at least one of the multiple spectral images is a hazardous material. | 09-24-2009 |
20090302232 | MULTI-WINDOW SIGNAL PROCESSING ELECTRONICS ARCHITECTURE FOR PHOTON COUNTING WITH MULTI-ELEMENT SENSORS - A radiation detection and counting system ( | 12-10-2009 |
20100001200 | IMAGING TECHNIQUES FOR REDUCING BLIND SPOTS - An imaging system is provided for radioimaging a region of interest (ROI) of a subject. The system includes a housing, a support structure, which is movably coupled to the housing, and at least one motor assembly, coupled to the housing and the support structure, and configured to move the support structure with respect to the housing. The system also includes at least two detector assemblies, fixed to the support structure, and comprising respective radiation detectors and angular orientators. A control unit drives the motor assembly to position the support structure in a plurality of positions with respect to the housing, and, while the support structure is positioned in each of the plurality of positions, drives the orientators to orient the respective detectors in a plurality of rotational orientations with respect to the ROI, and to detect radiation from the ROI at the rotational orientations. Other embodiments are also described. | 01-07-2010 |
20100072385 | RADIOACTIVE MATERIAL DETECTING AND IDENTIFYING DEVICE AND METHOD - Disclosed is an device for detecting and identifying a radioactive material, comprising: a first detector including a detection surface and generating first pulse signals when gamma rays are incident onto said detection surface; a second detector generating second pulse signals and provided in the front of the detection surface of the first detector, so that the gamma rays entering the second detector directly enter the first detector after passing through the second detector; and an identification unit. The identification unit comprises: a coincidence device configured to receive the first pulse signals and the second pulse signals from said first detector and said second detector; a multi-channel analyzer configured to receive the second pulse signals from the said second detector, the multi-channel analyzer counting said second pulses and generating the energy spectrum of the gamma rays according to the counted second pulses, when said first pulse signals and said second pulse signals are both valid; and a determination device configured to determine the type of the radioactive material emitting the gamma rays according to the generated energy spectrum and to determine whether a radiation exists or not according to said first pulse signals or said second pulse signals. The present invention also provides a method for detecting and identifying a radioactive material. | 03-25-2010 |
20100171041 | TOMOGRAPH, TOMOGRAPHY, TOMOGRAPHY PROGRAM, AND COMPUTER-READABLE RECORDING MEDIUM WHERE THE PROGRAM IS RECORDED - The invention provides a tomograph, and a tomography method, that is capable of providing reconstructed images of high resolution without truncation for large subjects such as a human body. | 07-08-2010 |
20100176305 | System and Method for Athermal Operation of a Focal Plane Array - A method includes determining a signal current based on an average current associated with one or more detectors. The method also includes determining a strip voltage based on the signal current. The method further includes biasing a strip resistance with the strip voltage. The biasing of the strip resistance creates a strip current. The method additionally includes biasing a detector array with a detector voltage. The biasing of the detector array creates a detector current. The method also includes determining levels of incident radiation from a scene based on the strip current and the detector current. | 07-15-2010 |
20100181491 | DIGITIZER FOR A DIGITAL IMAGING SYSTEM - The disclosure is directed at a method of digital imaging comprising sensing photons on at least one pixel within a pixel array of a radiation detector; counting the photons using photon counting to produce a digital signal representative of the sensed photons; monitoring a photon flux associated with the sensed photons; and using photon integration to produce a digital signal representative of the sensed photons when the photon flux is higher than a predetermined photon flux. | 07-22-2010 |
20100193698 | GANTRY MOUNTED PATIENT TABLE AND EXCHANGER FOR MEDICAL IMAGING - The following relates to an integrated patient scanner system. The system includes a stationary gantry with first and second sides and a rotating gantry mounted to rotate in the stationary gantry around a patient receiving aperture, which is defined by the rotating gantry. The system further includes at least one detector mounted to the rotating gantry and extending from the first side around the patient receiving aperture. A patient table having a pedestal and a pallet is mounted to the stationary gantry. The pedestal mounts to and extends from the second side of the stationary gantry opposite to the at least one detector such that the pedestal and the stationary gantry define a common T-shaped supporting surface adapted to rest on the floor. The patient pallet mounts to the pedestal for movement to extend cantilevered through the patient aperture and out the first side past the at least one detector. | 08-05-2010 |
20100193699 | Radiography network system and radiographic image capturing system control method - An image capturing apparatus establishes a communication link with one console and transmits obtained radiographic image information to the one console. The one console includes a backup unit therein. The backup unit includes means (network monitoring unit, backup data storage unit) for monitoring a network, reading the radiographic image information during transmission thereof via the network, and temporarily storing the read radiographic image information as backup data, and means (supplementary data extraction unit, supplementary data transmitter) for transmitting to another console as supplementary data a portion or all of the backup data, in accordance with a data supplementing request from the other console. | 08-05-2010 |
20100264325 | Ferroelectric Radiation Detector Employing Frequency Modulated Readout - A detector for electromagnetic radiation such as millimeter wave and infrared employs a ring-shaped ferroelectric element having a temperature affected by an absorber for the radiation. The dielectric constant of the ferroelectric material is a strong function of the temperature near its Curie temperature. The resonant frequency of the ferroelectric element is detected by applying a swept-frequency signal to the circuit and detecting the frequency which enhances the energy of the pulse. A two-dimensional camera for the radiation employs a two-dimensional array of these ferroelectric resonant circuits and a system for rapidly interrogating their resonant frequencies on a sequential basis. | 10-21-2010 |
20100282977 | SPECT CAMERA - Systems and methods for providing improved detectors for use in SPECT cameras. The improved detectors use pinhole apertures and surfaces calculated to provide improved sensitivity and resolution. In some embodiments, the detectors have non-planar surfaces. In some embodiments, the surfaces are spherical, conical, parabolic, or other non-planar forms. | 11-11-2010 |
20100327176 | IMAGE PICKUP APPARATUS, IMAGE PICKUP SYSTEM, AND CONTROL METHOD THEREOF - An image pickup apparatus includes a detection unit in which a matrix of pixels converts radiation or light into analog electrical signals, a reading circuit configured to perform signal processing operation by reading the analog electric signals on a row-by-row basis, an A/D converter configured to convert a pixel signal output from the reading circuit into pixel data, and a correction processing unit configured to correct the pixel data. A control unit performs control processing so that the reading circuit outputs reset signals to the A/D converter in a period in which the signal processing operation of a predetermined row is performed, the A/D converter converts the reset signals into pieces of reset data in the period, and the correction processing unit averages the pieces of reset data output from the A/D converter and performs subtraction with the averaged reset data and the pixel data output from the A/D converter. | 12-30-2010 |
20110049381 | IMAGING DETECTOR THERMAL CONTROL - An imaging detector includes a radiation sensitive region having first and second opposing sides. One of the first or second sides senses impinging radiation. The detector further includes electronics located on the other of the first or second sides of the radiation sensitive region. The electronics includes a thermal controller that regulates a temperature of the imaging detector. | 03-03-2011 |
20110062344 | LOCALIZATION OF A RADIOACTIVE SOURCE WITHIN A BODY OF A SUBJECT - A computerized system for locating a device including a sensor module and a processor. A radioactive source, associated with the device, produces a signal in the form of radioactive disintegrations. The sensor module includes a radiation detector capable of receiving a signal from the source attached to the device. The sensor module produces an output signal. The processor receives output signal(s) and translates output into information relating to a position of source. | 03-17-2011 |
20110174982 | High radiation environment tunnel monitoring system and method - In accordance with the principles of the present invention utilizing a first radiation monitoring module, radiation information associated with the first radiation monitoring module within a tunnel is wirelessly transmitted to a second radiation monitoring module. The second radiation monitoring module is able to receive radiation information from the first radiation monitoring module for relay of the received radiation information to a central monitoring system. The radiation monitoring modules of the present invention allow long term monitoring of a tunnel's radiation levels with maintenance simply requiring replacement of a non-operational tunnel monitoring module by a robot. | 07-21-2011 |
20110198510 | LOCALIZATION OF A RADIOACTIVE SOURCE - An angle-responsive sensor, comprising: a radiation detector adapted to detect ionizing radiation; at least one collimator arranged to block radiation from reaching the detector in a manner dependent on a relative orientation of a radiation source, the detector and the collimator, the detector and the collimator defining an aim for the sensor; and circuitry coupled to the detector and which generates an output signal which varies as a function of the relative orientation, wherein the detector and the collimator are arranged to have a working volume of at least 10 cm in depth and having an angular width, such that the slope of the signal as a function of angle varies by less than a factor of 2 over the working volume. | 08-18-2011 |
20110210262 | APPARATUS AND METHOD FOR DETECTING HIGH-ENERGY RADIATION - An apparatus for spatially correcting an image frame is disclosed. In some embodiments, the apparatus stores a frame of pixel values and scans a multi-pixel correction window across the frame. Spatial correction is performed on pixels within the window at correction positions during the scan. The spatial correction comprises estimating pixel values at value estimation positions based on one or more pixel values within the window for pixels satisfying a logical condition. The value estimation positions correspond to pixel values which do not fall within the window again during the scan. Further disclosed is an apparatus for detecting high-energy radiation, in which integration circuitry is used for integrating charge responsive to radiation photon interaction events. The circuits are controllable in accordance with an exposure control signal to vary an exposure window duration according to an operating parameter of the apparatus. | 09-01-2011 |
20110215253 | Measurement Apparatus and Method for Detecting Contamination on a Moving Object - A method for detecting contamination on a moving object moving in a longitudinal direction past a plurality of detectors, wherein
| 09-08-2011 |
20110215254 | NUCLEAR MEDICAL DIAGNOSIS APPARATUS - A PET apparatus comprises a plurality of detector units in the circumferential direction, wherein the detector unit includes a plurality of unit substrates therein, and wherein the unit substrate includes: a plurality of detectors upon which a γ-ray is incident; and an analog ASIC and digital ASIC for processing a γ-ray detection signal outputted by each of the detectors. The analog ASIC includes two slow systems having mutually different time constants, each of which outputs a pulseheight value. A noise determination part of the digital ASIC determines whether a relevant detection signal is an intended γ-ray detection signal or a noise based on a correlation between the pulseheight values, and a noise counting part counts the number of times of noise determination, and a detector output signal processing control part controls the signal processing with respect to an output signal from a relevant detector based on the count. | 09-08-2011 |
20110215255 | ASSAYING OF WASTE - A method for investigating a volume of material at an investigation location for radioactive material includes: detecting signals from a first detector caused by the interaction of one or more types of emission from the radioactive material with the first detector; detecting signals from a second detector caused by the interaction of cosmic rays and/or one or more types of particle generated by cosmic rays with the second detector; processing the signals from the first detector to provide information on the amount of radioactive material associated with the volume of material; processing the signals from the second detector to provide information on the amount of cosmic rays and/or one or more types of particle generated by cosmic rays incident on the investigation location; and correcting the information on the amount of radioactive material associated with the volume of material using the amount of cosmic rays and/or one or more types of particle generated by cosmic rays incident on the investigation location, thereby providing corrected information on the amount of radioactive material associated with the volume of material. | 09-08-2011 |
20110240873 | RADIATION IMAGE PROCESSING APPARATUS - On control charge information, which is obtained from an on-controlled detection element, is acquired with respect to each of the detection elements of a radiation detector, and off control charge information, which corresponds to the on-controlled detection element, is acquired with respect to each of predetermined detection element intervals. Element interpolated off control charge information representing the off control charge information having not been acquired is formed by performing an interpolating operation in accordance with the off control charge information having been acquired with respect to each of the predetermined detection element intervals. The on control charge information is corrected with the corresponding off control charge information or the corresponding element interpolated off control charge information. | 10-06-2011 |
20110291020 | EDGE-ON TWO-DIMENSIONAL DETECTOR ARRAYS - A two dimensional radiation detector array includes a plurality of detector cards, each of the detector cards including: a plurality of radiation detectors arranged in a linear array; and a plurality of amplifiers, each of the amplifiers being electrically coupled to a respective one of the plurality of radiation detectors; and a separator between first and second detector cards of the plurality of detector cards. | 12-01-2011 |
20110303854 | GAMMA RAY DIRECTIONALITY PROBE - A probe for determining direction to a radiation source emitting gamma rays with radiation detectors arranged around a scattering element. Incoming gamma rays are deflected by Compton scattering within the scattering element. Scattered radiation is detected in the radiation detectors. The detected pattern of secondary scatter into the detectors is dependent on the location of the source. The analog outputs from the processing electronics are routed from the detectors to a digital processing unit. A directional filter algorithm that combines rates at different detectors decodes the direction to the source. | 12-15-2011 |
20120025091 | METHOD OF COINCIDENCE DETECTION AND TOMOGRAPHY SYSTEM USING THE SAME - A method of coincidence detection and a tomography system using the same are provided. In the method and system, by combining original trigger signals and time mark information, at a time point of a rising edge of a system main clock, a combination of the trigger signals of a plurality of radiation detectors of the system is obtained, and a type of the combination of the trigger signals is determined according to a predetermined event relation. If the combination of the trigger signals belongs to an effective event, a time mark procedure is utilised for judging the trigger signals in the event, in which it is determined whether a difference between two time mark information respectively associated with the trigger signals of the two corresponding radiation detectors is within a coincidence time window or not, thereby judging whether the effective event is an annihilation event. | 02-02-2012 |
20120043471 | POSITION AN ORIENTATION DETERMINATION SYSTEM FOR A RADIATION DETECTOR - Devices and methods for the characterization of areas of radiation in contaminated rooms are provided. One such device is a collimator with a collimator shield for reducing noise when measuring radiation. A position determination system is provided that may be used for obtaining position and orientation information of the detector in the contaminated room. A radiation analysis method is included that is capable of determining the amount of radiation intensity present at known locations within the contaminated room. Also, a visual illustration system is provided that may project images onto the physical objects, which may be walls, of the contaminated room in order to identify the location of radioactive materials for decontamination. | 02-23-2012 |
20120056097 | X-RAY IMAGING APPARATUS AND METHOD FOR OUTPUTTING X-RAY IMAGES - An X-ray imaging apparatus, which acquires an X-ray photographic image of an subject and outputs the X-ray photographic image to a plurality of output apparatuses, determines, as an output region to a first output apparatus, either an extracted irradiated region from an X-ray photographic image or a partial region selected from the X-ray photographic image by an user. When the size of the output region to the first output apparatus is not larger than an image size to be output to a second output apparatus, the output region to the first output apparatus is determined as an output region to the second output apparatus. When the output region to the first output apparatus is larger than the image size, a region corresponding to the image size is extracted from the output region to the first output apparatus as an output region to the second output apparatus. | 03-08-2012 |
20120061581 | MIXED RESOLUTION AND MULTIPLEXING IMAGING METHOD AND SYSTEM - Embodiments relate to an imaging system that includes a collimator assembly having two or more pinhole apertures therein. In one embodiment, the imaging system is configured so that two or more of the pinhole apertures have different focal lengths. The imaging system further includes a detector assembly configured to generate one or more signals in response to gamma photons that pass through the two or more pinhole apertures. Additional embodiments also relate to methods of changing collimator performance and methods of imaging a volume. | 03-15-2012 |
20120074331 | ELECTRONIC CASSETTE FOR RADIOGRAPHIC IMAGING - An electronic cassette for radiographic imaging has an enclosure, an imaging detection panel disposed in the enclosure and configured to convert an amount of radiation into an electric signal, a circuit unit disposed in the enclosure and configured to read an electric signal from the imaging detection panel by supplying a driving signal to the imaging detection panel, and a holding base disposed in the enclosure and configured to support the imaging detection panel. The holding base supports the imaging detection panel on a first surface as a radiation incident side and supports the circuit unit on a second surface on an opposite side to the first surface. The holding base includes a carbon fiber laminated plate having a metal layer inserted in lamination layer, and the metal layer is electrically connected to ground of the circuit unit. | 03-29-2012 |
20120074332 | RADIOGRAPHIC IMAGE DETECTOR - A flat panel detector (FPD) includes an imaging panel having pixels arranged in a matrix, a gate driver for turning thin film transistors (TFTs) of the pixels ON and OFF, a radiation detecting section for detecting the start of x-ray radiation from the x-ray source, and a controller. The controller controls the gate driver to turn the TFTs ON periodically to reset dark charges of the pixels. Before starting a charge accumulating operation for accumulating signal charges for imaging, the controller controls the gate driver to turn the TFTs OFF so that the radiation detecting section may detect the start of x-ray radiation on the basis of charge leaks from the pixels. When the start of x-ray radiation is detected, the controller starts the charge accumulating operation while keeping the TFTs in the OFF condition. Thereafter, the TFTs are turned ON to read out the accumulated signal charges. | 03-29-2012 |
20120074333 | X-ray Detector for Electron Microscope - Multiple detectors arranged in a ring within a specimen chamber provide a large solid angle of collection. The detectors preferably include a shutter and a cold shield that reduce ice formation on the detector. By providing detectors surrounding the sample, a large solid angle is provided for improved detection and x-rays are detected regardless of the direction of sample tilt. | 03-29-2012 |
20120097860 | RADIOGRAPHIC IMAGING APPARATUS - Provided is a radiographic imaging apparatus capable of obtaining more suitable radiological images by reducing the influence of noise generated at a current detecting section which detects current carried by applying radiation. The radiographic imaging apparatus includes a plurality of radiation detection elements two-dimensionally arranged in each region defined by a scanning line and a signal line, a switch section the state of which is switched between on and off states depending on voltage applied to the connected scanning line, a scan drive means having a gate driver that applies on voltage and off voltage to the switch section through the scanning line and a power supply circuit that supplies on voltage and off voltage to the gate driver, a current detecting section for detecting current flowing between the power supply circuit and the gate driver or current flowing through the scanning line, and a control section for detecting at least the start of applying radiation on the basis of the value of the current detected by the current detecting section. | 04-26-2012 |
20120104271 | RADIATION IMAGING APPARATUS - A radiation imaging apparatus includes a radiation flat panel detector configured to detect radiation incident thereupon and to generate a radiation image, a control unit configured to control a drive of the radiation flat panel detector, a heat insulation member arranged between the radiation flat panel detector and the control unit, an external housing configured to accommodate therein the flat panel detector and the control unit, a first heat transfer member configured to transfer heat from the radiation flat panel detector to a first surface of the external housing, and a second heat transfer member configured to transfer heat from the control unit to a second surface of the external housing different from the first surface. | 05-03-2012 |
20120112087 | APPARATUS AND METHOD FOR DETECTING GAMMA-RAY DIRECTION - It is an object of the present invention to allow a gamma-ray-source's existing position direction to be detected using a small-volume gamma-ray detector. A gamma-ray's direction detecting apparatus including a plurality of detection pixels for detecting gamma rays, a memory device for memorizing a correspondence relationship in advance, the correspondence relationship being established for indicating, with respect to predetermined gamma-ray's incoming directions, what kind of actual-measurement frequency data should be acquired using the plurality of detection pixels, and a measurement/calculation unit which measures the gamma-ray's actual-measurement frequency data detected using the plurality of detection pixels, and calculates a gamma-ray's incoming direction by using the actual-measurement frequency data and the correspondence relationship memorized into the memory device. | 05-10-2012 |
20120126135 | DOSIMETER AND METHOD FOR DETERMINING AN ENERGY DOSE OF A PULSED RADIATION FIELD - The invention concerns a dosimeter for the determination of an absorbed dose (D) of a radiation field ( | 05-24-2012 |
20120132824 | RADIOGRAPHIC IMAGE DETECTING APPARATUS AND RADIOGRAPHIC IMAGE CAPTURING SYSTEM - A radiographic image detecting apparatus and a radiographic image capturing system are provided. The radiographic image detecting apparatus includes photoelectric conversion elements for generating electric charge by emission of radiation, a bias line through which a bias voltage is supplied to the photoelectric conversion elements, a power supply for applying the bias voltage to the photoelectric conversion elements through the bias line, a current detector for detecting a bias current flowing through the bias line based on a voltage drop across a resistor inserted in the bias line, a first amplifying circuit, a second amplifying circuit connected to an output of the first amplifying circuit, and a controller for correcting the electric signal by increasing a gain of the second amplifying circuit depending on decrease in a sensitivity of the photoelectric conversion element, the decrease being caused by the voltage drop. | 05-31-2012 |
20120132825 | RADIATION IMAGE CAPTURING DEVICE - Disclosed is a radiation image capturing device including a control section which detects at least a start of irradiation based on a current value of a current detected by a current detection section, wherein the control section applies an ON-state voltage having a predetermined voltage value from a scan driving section to a switch section via each of scan lines simultaneously so as to perform reset processing of each of radiation detection elements before radiation image capturing, and thereafter, decreases the voltage value of the ON-state voltage simultaneously, monitors the current value outputted from the current detection section while keeping the decreased voltage value of the ON-state voltage, and waits for the start of the irradiation. | 05-31-2012 |
20120138810 | RADIOGRAPHIC IMAGING DEVICE, RADIOGRAPHIC IMAGING METHOD, AND COMPUTER READABLE MEDIUM STORING RADIOGRAPHIC IMAGING PROGRAM - The present invention provides a radiographic imaging device including, a plurality of pixels each including, a generation section that generates charges according to irradiated radiation, an accumulation section that accumulates charges generated by the generation section, and a switching element that reads out the charges accumulated in the accumulation section, and that outputs electrical signals corresponding to the charges; an amplification section that amplifies the electrical signals output from the switching elements; and a setting section that sets an amplification factor of the amplification section corresponding to the charges accumulated during an accumulation period, during which charges are accumulated, based on the electrical signals output from radiation detection pixels during the accumulation period. | 06-07-2012 |
20120138811 | IMAGING SYSTEM, IMAGE PROCESSING METHOD THEREFOR, AND PROGRAM THEREFOR - An imaging system includes a detector ( | 06-07-2012 |
20120153181 | RADIATION IMAGE CAPTURING APPARATUS AND RADIATION IMAGE OBTAINING METHOD - A radiation image capturing apparatus includes: a first grid which includes grid structures disposed at intervals and forms a first periodic pattern image by passing radiation emitted from a radiation source; a second grid provided with grid structures disposed at intervals and forms a second periodic pattern image by receiving the first periodic pattern image; a radiation image detector that detects the second periodic pattern image formed by the second grid; and a detector positioning mechanism that adjusts a position of the radiation image detector in an in-plane direction of a detection plane of the detector such that radiation transmitted through the first and second grids falls within the radiation image detector. | 06-21-2012 |
20120153182 | RADIATION IMAGE OBTAINING METHOD AND RADIATION IMAGE CAPTURING APPARATUS - A radiation image capturing apparatus for capturing a plurality of radiation images by translating a second grid with respect to a first grid and transmitting the plurality of radiation images includes a storage unit for storing a plurality of radiation image signals captured by translating the second grid with respect to the first grid, an association unit for associating the plurality of radiation image signals stored in the storage unit, and a communication unit for transmitting one set of the radiation image signals associated by the association unit at a time. | 06-21-2012 |
20120161026 | IMAGE CAPTURE CONTROLLER AND RADIOGRAPHIC IMAGE CAPTURE SYSTEM - An image capture controller includes: a communication unit that communicates with a portable radiographic image capture device that captures a radiographic image and generates image data indicating the captured radiographic image; a measuring unit that measures a duration of an off state of a power supply when a power supply of the portable radiographic image capture device has been turned off; and a controlling unit that controls the communication unit such that, if the measured duration is equal to or greater than a predetermined value, a calibration is performed in the portable radiographic image capture device when the power supply thereof is changed from off to on, and such that, if the measured duration is less than the predetermined value, the calibration is not performed in the portable radiographic image capture device when the power supply thereof is changed from off to on. | 06-28-2012 |
20120161027 | X-RAY DETECTOR - An X-ray detector is connected to a large number of detector modules connected in series. The X-ray detector detects X-ray image data for each detection module, each module synchronously reading X-ray image data detected by itself based on an internal clock φ, each module transferring the read X-ray image data one after another. Each of the detection modules receives the transferred X-ray image data, and resynchronizes the received X-ray image data by using the internal clock, and transfers the same together with the detected X-ray image data. This enables arranging the detection module at an arbitrary position without a change in the method of transferring data for each measurement or without a load on a control device. | 06-28-2012 |
20120168636 | METHOD FOR PROCESSING 3D DISTRIBUTION IMAGE OF RADIATION SOURCE AND SYSTEM USING THE SAME - A system for processing three dimensional (3D) distribution image of a radiation source and a processing method using the same are provided. The system includes an image measuring unit comprising a plurality of position sensitive detectors to measure the radiation source, a signal amplifying unit which receives signals from the image measuring unit and amplifies the received signals into an electric signal, a mode selecting unit that receives the electric signal and selects a detection mode and outputs a corresponding mode signal, a data storage unit which stores the signals as a series of items, a data converting unit which converts the data stored at the data storage unit into interactive data, an image reconstructing unit which reconstructs the converted data into the 3D distribution image, and a display unit which displays the 3D distribution image received from the reconstructing unit. | 07-05-2012 |
20120193549 | IMAGE PICKUP APPARATUS, RADIATION IMAGE PICKUP APPARATUS AND RADIATION IMAGE PICKUP SYSTEM - An image pickup apparatus is provided with plural light receiving areas arranged two-dimensionally, and a vertical scanning circuit comprising plural unit circuit stages arranged in the vertical direction and a horizontal scanning circuit comprising plural unit circuit stages arranged in the horizontal direction, for selecting and reading the plural light receiving areas in succession. The vertical and horizontal scanning circuits are arranged in spaces between the light receiving areas. A crossing area of the vertical and horizontal scanning circuits, in a space between the light receiving areas, is divided into two areas. A unit circuit of the horizontal scanning circuit is provided in one of the two areas. A unit circuit of the vertical scanning circuit is provided in the other of the two areas. In one embodiment, the unit circuits of the vertical scanning circuit and/or of the horizontal scanning circuit are arranged at a constant pitch. | 08-02-2012 |
20120211665 | SYSTEM AND METHOD FOR IDENTIFYING NON-COOPERATIVE PULSED RADIATION SOURCES IN A FIELD-OF-VIEW OF AN IMAGING SENSOR - A system and method for identifying a pulsed radiation source may include an imaging sensor having a frame rate that is less than a pulse repetition frequency (PRF) of the pulsed radiation source. A processing unit may be in communication with the imaging sensor, and be configured to (i) process a sequence of image data of a scene captured by the imaging sensor to determine whether radiation of the pulsed radiation source is detected, (ii) determine a PRF code of the pulsed radiation source from possible multiple different PRF codes based on the processed sequence of image data, and (iii) notify a user of the PRF code or information associated with the PRF code. | 08-23-2012 |
20120211666 | RADIATION IMAGE CAPTURING SYSTEM - In a radiation image capturing system, prior to radiation image capturing operation, the radiation image capturing apparatus repeats on an alternate basis, a step of reading leak data and a step of resetting each of the radiation detection elements, wherein the step of reading leak data is performed by turning off all switch units, allowing a reading circuit to perform cyclic reading operations under this condition and converting electric charge leaking out of radiation detection elements through the switch units into the leak data, thereby detecting a start of irradiation based on the leak data having been read out. The image processing apparatus analyzes a profile of image data along the extension of signal lines of the radiation image capturing apparatus, and identifies a range of the image data where a defect has occurred, whereby the image data in the identified range is corrected. | 08-23-2012 |
20120217411 | RADIATION IMAGING APPARATUS, STAND FOR RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging system includes a first radiation imaging apparatus having an imaging plane of a first size and a cooperation unit which cooperates with an external apparatus and is arranged at a common distance from a center portion of one side of the imaging plane and a second radiation imaging apparatus including a second imaging plane equal in length to one side of the imaging plane and different in size from the imaging plane and a cooperation unit arranged at the common distance from the center portion of the one side equal in length. | 08-30-2012 |
20120217412 | IMAGING APPARATUS, IMAGING CONTROL APPARATUS, IMAGING SYSTEM, AND METHOD FOR CONTROLLING IMAGING APPARATUS - An imaging apparatus configured to output an imaging enabling signal in response to an imaging instruction includes an imaging unit, a control unit configured to cause the imaging unit to repeatedly perform initialization driving for reading an accumulated electrical signal, and a determination unit configured to determine whether to start new initialization driving before the imaging enabling signal is output, according to an elapsed time from completion of the last initialization driving to the time of receipt of the imaging instruction. | 08-30-2012 |
20120217413 | IMAGE PICKUP APPARATUS, IMAGE PICKUP SYSTEM, METHOD FOR CONTROLLING IMAGE PICKUP APPARATUS, METHOD FOR CONTROLLING IMAGE PICKUP SYSTEM, AND PROGRAMS - An image pickup apparatus includes a detector having pixels divided into first and second pixel groups, a signal processor including a reading circuit unit including first and second reading circuits, an A/D conversion unit including first and second A/D converters, a digital data processing circuit, and a controller. The controller instructs the signal processor to perform a signal processing operation several times of adding direct current potentials to analog electric signals of pixels from the reading circuit unit, supplying the signals to the A/D conversion unit, and outputting digital data to the digital data processing circuit while the direct current potentials are changed, and an average processing operation of averaging the digital data for the pixels using the digital data processing circuit. | 08-30-2012 |
20120235052 | METHOD FOR DETECTING X-RAY RADIATION AND DETECTOR SYSTEM WITH DIRECT CONVERSION DETECTORS - A method and a detector system are disclosed for the photon-counting detection of x-ray radiation with direct conversion detectors. In at least one embodiment of the method, as a function of the existing radiation energy, current and/or voltage pulses which are largely proportional thereto are generated, and the generated current and voltage pulses are counted in the detector when a predetermined current and/or voltage source is exceeded, whereby a threshold is used as a predetermined current and/or voltage threshold, which corresponds to a detection of a photon with an energy which is less than the k-edge of the detector material used. | 09-20-2012 |
20120241639 | IMAGE PICKUP APPARATUS, IMAGE PICKUP SYSTEM, AND METHOD FOR CONTROLLING THE SAME - An image pickup apparatus includes a detector that includes a detection unit having a plurality of pixels in which conversion elements are included and a driving circuit that drives the detection unit and that executes an image pickup operation for outputting electrical signals, and a temperature control unit that includes a heating section that heats the conversion elements and that controls, before the image pickup operation begins, the temperature of the conversion elements by controlling the heating section such that the heating section heats the conversion elements in order to cause the temperature of the conversion elements before the image pickup operation begins to be higher than the temperature of the conversion elements during the image pickup operation. | 09-27-2012 |
20120267540 | MOBILE FRAME STRUCTURE WITH PASSIVE/ACTIVE SENSOR ARRAYS FOR NON-INVASIVE IDENTIFICATION OF HAZARDOUS MATERIALS - A system, method, and mobile frame structure detect radiation and identify materials associated with radiation that has been detected. A mobile frame structure is maneuvered over an entity to be examined. A set of radiation data associated with the entity is received from a set of radiation sensors that are mechanically coupled to the at least one portion of the mobile frame structure. At least one histogram is generated based on the set of radiation data. The at least one histogram is compared to multiple spectral images associated with known materials. The at least one histogram is determined to substantially match at least one of the multiple spectral images. A determination is made whether a material associated with the at least one of the multiple spectral images is a hazardous material. Personnel is notified that the at least one radiation source is a hazardous material. | 10-25-2012 |
20120267541 | Two-Dimensional and Three-Dimensional Position Sensing Systems and Sensors Therefor - Two and three dimensional position sensing systems and sensors for use in such systems are disclosed. The sensors incorporate linear array sensors and an aperture plate to block light or other radiation from reaching most elements of the sensors. A direction of a radiation source relative is determined based on illuminated sensor elements in each sensor. The sensors are combined in systems to allow the position of a radiation source to be estimated. | 10-25-2012 |
20120305791 | RADIOGRAPHIC IMAGE DETECTOR AND CONTROL METHOD THEREFOR - A flat panel detector has an imaging area, in which pixels are arrayed in a matrix and signal lines for reading out electric signals from the pixels are provided, to detect an image of a subject from x-rays which are incident on the imaging area after penetrating the subject. Detective elements are arranged in the imaging area, to output electric signals corresponding to incident x-rays. Based on previously stored sensitivity data on the detective elements, high-sensitivity elements are selected from among the detective elements. The start of radiation and the end of radiation of x-rays toward the imaging area are detected by monitoring the electric signals from the selected high-sensitivity elements, to control operation of the imaging device on the basis of the detected start and end of radiation. | 12-06-2012 |
20120305792 | RADIOGRAPHIC IMAGE DETECTOR AND CONTROL METHOD THEREFOR - An x-ray image detector monitors the intensity of incident x-rays to detect an end of radiation from an x-ray source when the x-ray intensity decreases to a threshold level or less. The x-ray intensity gets down to zero with a variable time lag from the start of decreasing, called radiation wave tail. Depending on the gradient of declivity in time curve of the decreasing x-ray intensity, calculated at the time when the end of radiation is detected, the x-ray image detector decides a delay time from the end-of-radiation detection time to a reading start time to start reading signal charges from the image detector. Thus, the reading start time may be adjusted to the point when the x-ray intensity gets down to zero, which will improve S/N ratio and prevent shading artifacts. | 12-06-2012 |
20120305793 | ROTATIONALLY SYMMETRICAL COHERENT VERIFICATION PHANTOM (VIRTUAL PATIENT) WITH A FLAT DETECTOR DISPOSED ON A ROTARY AXIS INTEGRATED IN A MULTI PURPOSE QC-ACCESSORY - A quality control accessory (QC accessory) is provided which is adapted for use in linear accelerator quality control or in verification of an arbitrary isocentric radiation treatment plan of a patient or radiation sensitive body. The accessory includes an absorber, a detector and an optional orientation device. The absorber is rotationally symmetric, preferably spherical or hemispherical. The detector is adapted to be fixed in a stationary spatial relationship with respect to the absorber. The optional orientation device is adapted to maintain the two dimensional detector (2d detector) and the absorber in a fixed relative spatial relationship with respect to the beam focus of the linear accelerator, when the gantry is rotated, so that the central axis of the beam is essentially orthogonal to the 2d detector and the phantom axis of symmetry is parallel to or aligned with the central axis of the gantry rotation axis. | 12-06-2012 |
20120326049 | QUANTUM-COUNTING RADIATION DETECTOR - A quantum-counting radiation detector is disclosed, in particular an x-ray detector. In at least one embodiment, the signals of the individual pixels and the signals of combined pixels are evaluated in parallel processing branches. It is then possible to combine the count results in an appropriate manner, to reduce the influence of unwanted interference effects for the respective application. | 12-27-2012 |
20130001429 | IMAGING APPARATUS, IMAGING SYSTEM, CONTROL APPARATUS, AND METHOD FOR CONTROLLING IMAGE SENSOR - An imaging apparatus includes an image sensor having an imaging area with a plurality of pixels arranged therein, each pixel having a photoelectric conversion unit and pixel amplifiers, a control unit configured to perform control for shifting the timing of activating the pixel amplifiers for each of sub areas in the imaging area, and control for reading an electrical signal from each pixel acquired via the activated pixel amplifiers, and a generation unit configured to generate an image based on the read electrical signal. | 01-03-2013 |
20130020493 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus comprising: a detection apparatus having detection regions; at least one plate having transmitting regions arranged in an array for adjusting the amount of radiation incident on the detection regions by blocking radiation incident on a region other than the transmitting regions; a holding unit that holds the plate in such a manner that the plate can move along the detection surface while being kept in a position over the detection surface of the detection apparatus; and a drive unit that moves the plate, is provided. The drive unit can fix the plate in various positions relative to the detection surface, and the area of a part of the detection region on which radiation transmitted through the plate is incident varies depending on the position of the plate. | 01-24-2013 |
20130020494 | RADIATION DETECTION APPARATUS AND DETECTION SYSTEM INCLUDING SAME - A detection apparatus includes a driving circuit unit in which a plurality of unit circuits each including a first circuit that supplies conducting voltage of a switch element of a pixel based on voltage included in a clock signal to a driving wire in accordance with an initiation signal and a second circuit that supplies non-conducting voltage of the switch element to the driving wire in accordance with a termination signal are provided for the plurality of corresponding driving wires and a control unit that supplies the clock signal to the driving circuit unit. The control unit supplies control voltage to the plurality of unit circuits, and each of the plurality of unit circuits further includes a third circuit that continues to supply the non-conducting voltage to the corresponding driving wire in accordance with the control voltage. | 01-24-2013 |
20130032727 | WAVEFRONT MEASURING APPARATUS, WAVEFRONT MEASURING METHOD, AND COMPUTER-READABLE MEDIUM STORING PROGRAM - A wavefront measuring apparatus includes an optical element forming a periodic pattern by light, a detector having pixels to detect the light, and a computer computing, based on detection results of the detector, wavefront information at positions in a wavefront of the light transmitted through or reflected by a specimen. The detector detects a first periodic pattern formed by the light, and a second periodic pattern formed by the light and shifted in phase from the first periodic pattern. The computer computes the wavefront information at one of the positions by using a result detected in a first pixel of the pixels when detecting the first periodic pattern, a result detected in a second pixel of the pixels when detecting the first periodic pattern, the second pixel being positioned within three pixels from the first pixel, and a result detected in the first pixel when detecting the second periodic pattern. | 02-07-2013 |
20130032728 | TRANSMISSION X-RAY ANALYZER AND TRANSMISSION X-RAY ANALYSIS METHOD - A transmission X-ray analyzer for detecting a transmission X-ray image of a sample that moves relatively in a predetermined scanning direction includes; a time delay and integration (TDI) sensor including a plurality of stages of line sensors including the plurality of two-dimensionally arranged image pickup devices arranged in a direction perpendicular to the predetermined scanning direction, being configured to transfer charge accumulated in one line sensor to an adjacent subsequent line sensor; a shield unit for shielding a part of the image of light entering the TDI sensor by moving back and forth in the predetermined scanning direction, the shield unit being disposed between the TDI sensor and the sample; and a shield unit position control unit for controlling a position of the shield unit so as to shield a predetermined number of stages of line sensors among the plurality of stages of line sensors. | 02-07-2013 |
20130032729 | Charged Particle Detection System and Multi-Beamlet Inspection System - A charged particle detection system comprises plural detection elements and a multi-aperture plate in proximity of the detection elements. Charged particle beamlets can traverse the apertures of the multi-aperture plate to be incident on the detection elements. More than one multi-aperture plate can be provided to form a stack of multi-aperture plates in proximity of the detector. A suitable electric potential supplied to the multi-aperture plate can have an energy filtering property for the plural charged particle beamlets traversing the apertures of the plate. | 02-07-2013 |
20130056644 | TOMOGRAPHIC IMAGE GENERATING APPARATUS AND TOMOGRAPHIC IMAGE GENERATING METHOD - A tomographic image of a subject is generated from projection image data acquired in a series of image capturing processes carried out by a radiation detector based on radiation emitted from a radiation source and transmitted through the subject. An extrapolating process is performed on each of the projection image data along a prescribed direction, and a smoothing process is performed on each of the projection image data along a direction perpendicular to the prescribed direction, thereby determining values of a plurality of pixels in non-detecting regions, which do not belong to a detecting region of the radiation detector. The determined values of the pixels also are used to generate the tomographic image. | 03-07-2013 |
20130068960 | Apparatus for Monitoring Ion Implantation - An apparatus for monitoring an ion distribution of a wafer comprises a first sensor and a sensor. The first sensor, the second sensor and the wafer are placed in an effective range of a uniform ion implantation current profile. A controller determines the ion dose of each region of the wafer based upon the detected signal from the first sensor and the second sensor. In addition, the controller adjusts the scanning frequency of an ion beam or the movement speed of the wafer to achieve a uniform ion distribution on the wafer. | 03-21-2013 |
20130068961 | RADIATION IMAGE CAPTURING APPARATUS - A radiation image capturing apparatus is provided with a scanning drive unit which sequentially applies ON voltage to respective scanning lines during a readout process to read out image data from radiation detection elements. From the time before radiation imaging, a controller controls the scanning drive unit to sequentially apply the ON voltage to the respective scanning lines and executes the readout process for the image data from the radiation detection elements. The controller detects start of the radioactive irradiation when the image data exceeds a threshold value, and controls that ON time, during which the ON voltage is applied to the scanning lines from the scanning drive unit during the readout process for the image data before radiation imaging, becomes longer than ON time during a readout process for the image data after finishing the radioactive irradiation. | 03-21-2013 |
20130075619 | RADIOLOGICAL IMAGE DETECTION APPARATUS - A radiological image detection apparatus includes an imaging unit, a storage unit, a correction data generating unit, a correction unit, a disturbance detection unit, and a determination unit. The imaging unit acquires radiological image data. The storage unit stores correction data for correcting the radiological image data. The correction data generating unit generates new correction data based on dark image data and updates the correction data stored in the storage unit. The correction unit performs a correction process for the radiological image data using the correction data. The disturbance detection unit detects a disturbance acting when the imaging unit acquires the dark image data. The determination unit determines whether the updating of the correction data stored in the storage unit is permitted, or whether the acquisition of the dark image data is permitted, based on the detection result of the disturbance detection unit. | 03-28-2013 |
20130075620 | RADIOGRAPHIC IMAGE CAPTURE DEVICE, SYSTEM, PROGRAM STORAGE MEDIUM AND METHOD - A radiographic image capture device includes a radiation detector, an application section and a controller. The radiation detector includes plural detection pixels that detect a radiation application state and plural imaging pixels that capture a radiographic image. The application section applies a bias voltage to each of the plural detection pixels and to each of the plural imaging pixels. The controller effects control such that, if the radiation application amount detected by the detection pixels is equal to or greater than a first threshold value during a first state in which the bias voltage is applied to the plural detection pixels, the application section is caused to transition to a second state in which the bias voltage applied to the detection pixels is reduced. | 03-28-2013 |
20130075621 | RADIATION DETECTION APPARATUS AND DETECTION SYSTEM INCLUDING SAME - A detection apparatus includes a conversion element; a transistor which includes a semiconductor layer including a first channel region and a second channel region, a first gate electrode, and a second gate electrode; a first drive wiring which is connected to the first gate electrode; a second drive wiring which is connected to the second gate electrode; a first conduction voltage supply unit which supplies the first conduction voltage to the first driving wiring; a second conduction voltage supply unit which supplies the second conduction voltage to the second driving wiring; and a selection unit which selects any one of a first connection between the second drive wiring and the first conduction voltage supply unit and a second connection between the second drive wiring and the second conduction voltage supply unit. | 03-28-2013 |
20130082186 | RADIATION IMAGE CAPTURING SYSTEM AND RADIATION IMAGE CAPTURING APPARATUS - A radiation image capturing system which includes a radiation image capturing apparatus including a detection part, a scan activation unit, switch units, a reading circuit, a control unit and a communication unit, a radiation generation apparatus and a console wherein the radiation image capturing apparatus switches an image capturing method between a cooperation method in which radiation image capturing is performed in cooperation with the radiation generation apparatus and a non-cooperation method in which radiation image capturing is performed without cooperation with the radiation generation apparatus, and the console switches standby time which is a time period after the radiation image capturing apparatus becomes able to perform radiation image capturing until the radiation source is allowed to emit radiation onto the radiation image capturing apparatus between the cooperation method and the non-cooperation method. | 04-04-2013 |
20130099129 | RADIATION IMAGE CAPTURE DEVICE - A radiation image capture device is provided with a radiation detection panel including optoelectronic conversion elements, a signal processing board that performs signal processing of the signals provided by the radiation detection panel, a flexible printed circuit, and a casing. One end of the flexible printed circuit is connected to the radiation detection panel and the other end is connected to the signal processing board. The flexible printed circuit includes a base film fowled of an insulating resin film, wiring disposed over the base film, a coating layer formed of an insulating resin disposed over the wiring, and a shield layer provided between the base film and the wiring and/or between the wiring and the coating layer. An insulator is interposed between the shield layer and the wiring, and the shield layer is connected to a fixed potential. | 04-25-2013 |
20130099130 | RADIATION IMAGE CAPTURE DEVICE - A radiation image capture device is provided with a radiation detection panel, a signal processing board, a flexible printed circuit, a casing, and a first conductor. The radiation detection panel includes optoelectronic conversion elements that convert radiation to electronic signals. The signal processing board is disposed to oppose the radiation detection panel and performs signal processing of the electronic signals provided by the radiation detection panel. One end of the flexible printed circuit is electrically connected to the radiation detection panel and the other end is electrically connected to the signal processing board. The casing accommodates the radiation detection panel and the signal processing board, and accommodates the flexible printed circuit in a state of being separated from inner walls of the casing. The first conductor is provided at a region of the flexible printed circuit that comes in contact with the casing by movements of the flexible printed circuit. | 04-25-2013 |
20130105701 | PHOTON COUNTING DETECTOR TO GENERATE HIGH-RESOLUTION IMAGES AND HIGH-CONTRAST IMAGES, AND PHOTON COUNTING AND DETECTING METHOD USING THE SAME | 05-02-2013 |
20130119262 | RADIATION DIAGNOSIS APPARATUS - The radiation diagnosis apparatus includes: a first radiation detector; a second radiation detector for generating an output signal having a same polarity as that of the first radiation detector; an inverter formed at an output terminal of the first radiation detector to invert the polarity of the input output signal; a discriminator for receiving a common signal from the first and second radiation detector and outputting a control signal corresponding to the input common signal; and a data acquisition unit for converting an input signal to a digital signal according to the control signal while taking output signals of the plurality of inverters and the second radiation detector as inputs, and identifying an output signal of which detector of the first and second detectors the input signal is according to a polarity difference of the input signal. | 05-16-2013 |
20130126748 | SYSTEMS AND METHODS FOR GENERATING CONTROL SIGNALS IN RADIATION DETECTOR SYSTEMS - Systems and methods for generating control signal in radiation detector systems are provided. One system includes a scheduling architecture having at least one anode channel connected to a detector of the radiation detector system. The anode channel includes a charge sensitive amplifier and a signal shaper, wherein the anode channel is configured to generate at least one control signal to control data acquisition by the detector. The scheduling architecture also includes at least one shaper timer configured having a time constant to define timing for the generation of the control signal without using a clock. | 05-23-2013 |
20130134319 | MECHANICAL SHOCK ISOLATION FOR A RADIOGRAPHIC DEVICE - A portable radiation detector is described having various shock isolation features. In one embodiment, shock isolation may be provided by providing a non-rigid mounting for a support layer within the portable detector to an enclosure of the portable detector. In other embodiments, an elastomeric strip is provided about all or part of an edge of the enclosure. In other embodiments, a removable elastomeric cover is provided for the portable detector. | 05-30-2013 |
20130134320 | NUCLEAR REACTOR FUEL INTEGRITY MONITOR - A nuclear reactor fuel integrity monitor includes: a γ-ray detector which detects γ-ray of a specific radionuclide of a subject measurement medium of a nuclear reactor; a sample container which retains the subject measurement medium therein and surrounds the circumference of the γ-ray detector; and a measurement control device which performs a control so that a predetermined amount of the subject measurement medium is introduced into the sample container and calculates a concentration of the specific radionuclide from γ-ray data per each unit time detected by the γ-ray detector and a volume of the subject measurement medium introduced into the sample container. | 05-30-2013 |
20130153779 | DOSE MEASUREMENT DEVICE FOR PLASMA-IMMERSION ION IMPLANTATION - The present invention relates to a dose-measurement device for ion implantation, the device comprising a module CUR for estimating implantation current, a secondary electron detector DSE, and a control circuit CC for estimating the ion current by taking the difference between said implantation current and the current from said secondary electron detector. Furthermore, said high-energy secondary electron detector comprises a collector COL, P supporting exactly three mutually insulated electrodes:
| 06-20-2013 |
20130153780 | DIGITAL X-RAY DETECTOR - A digital X-ray detector is provided, and the digital X-ray detector includes an X-ray detection array configured to detect an X-ray image when a subject is irradiated with X-ray; a support board configured to support a lower part of the X-ray detection array and have a bottom surface thereon a plurality of spaced-apart first joining portions are formed; an external case configured to accommodate the X-ray detection array and the support board and have an inner bottom surface thereon a plurality of second joining portions are formed to correspond to the plurality of first joining portions; and shock absorption members configured to be vertically arranged between the bottom surface of the support board and the inner bottom surface of the external case, each shock absorption member having an upper end to be coupled to the first joining portion and a lower end to be coupled to the second joining portion. | 06-20-2013 |
20130161525 | RADIOGRAPHIC IMAGE DETECTOR, RADIOGRAPHIC IMAGING APPARATUS, RADIOGRAPHIC IMAGING SYSTEM - The present invention provides a radiographic image detector that may maintain even resolution in 6 directions before and after 3-pixel binning process. Namely, out of plural pixels with hexagonal shaped pixel regions in a radiation detector, for plural pixel groups respectively configured from 3 pixels, 3 pixels worth of charges in the radiation detector are read together, the charge signals of these 3 pixels combined, and integrated in sequence with a charge amplifier. For specific pixel groups, out of 3 pixels configuring the specific pixel groups, the charge signals of 2 pixels worth, and the charge signal of the remaining 1 pixel worth are summed with the same charge amplifier using shifted integration timings. 3-pixel binning is thereby performed. | 06-27-2013 |
20130161526 | RADIATION IMAGE CAPTURING APPARATUS AND RADIATION IMAGE CAPTURING SYSTEM - If a control unit of a radiation image capturing apparatus acquires dark image data before photographing and at the same time detects initiation of irradiation of radiation based on image data read out by carrying out a readout process of the image data, the control unit applies off-voltage to all the scanning lines and shifts to an electric charge accumulation mode, and after the irradiation is over, sequentially applies on-voltage to each of the scanning lines, causes the scanning lines to carry out readout process of main image data from each of radiation detection elements, and subsequently acquires offset data in a condition where radiation is not irradiated to correct the main image data read out by the photographing or main image data read out by a photographing carried out after the former photographing based on offset lag part calculated from the offset data and the dark image data. | 06-27-2013 |
20130168567 | COLLIMATOR FOR A PIXELATED DETECTOR - A collimator for collimating high-energy photons, which may be used in medical imaging (e.g., nuclear medicine). The collimator has holes through the thickness (height) of the collimator, with the holes arranged in groups or clusters. The collimator may be used with a detector having an array of pixels, wherein each group of holes may be associated with a corresponding pixel, thereby providing multiple collimator holes per pixel. In one embodiment, each group of holes has septa of a given width separating the holes in that group, and each group of holes is separated from neighboring groups by septa of another, greater width. In another embodiment, the intra-group septa may be recessed from the top and/or bottom surface(s) of the collimator such that these septa have a smaller thickness (height) than the inter-group septa. | 07-04-2013 |
20130168568 | RADIATION IMAGING SYSTEM AND RELAY STATION SELECTION METHOD - This invention includes a radiation detector to detect the radiation transmitted through an object while being in a portable state or mounted on a detector holder, a control unit to control capturing of a radiographic image using the radiation detector, and a plurality of relay stations to relay wireless communication from the radiation detector. The detector holder includes a detection unit to detect the mounting of the radiation detector. The control unit determines the usage pattern of the radiation detector or the mounting of the radiation detector on a detector holder based on detection information from the detection unit or a connection request from the radiation detector, and selects one of the relay stations based on the determination result. | 07-04-2013 |
20130187059 | RADIATION IMAGE CAPTURING SYSTEM AND RADIATION IMAGE CAPTURING APPARATUS - A radiation image capturing system which includes a radiation image capturing apparatus including a plurality of scanning lines and a plurality of signal lines, a plurality of radiation detection elements, a scanning drive unit, switch units, reading circuits and a control unit and a console including a notification unit. In the system, the control unit of the radiation image capturing apparatus starts or continues a reset process of the radiation detection elements to discharge the electric charges remaining in the radiation detection elements from inside of each of the radiation detection elements for next radiation image capturing when a series of processes for obtaining the image data is finished. | 07-25-2013 |
20130193339 | RADIATION IRRADIATION INITIATION DETERMINATION APPARATUS, RADIATION IMAGE CAPTURING DEVICE, RADIATION IMAGE CAPTURE CONTROL APPARATUS, RADIATION IRRADIATION INITIATION DETERMINATION METHOD, AND COMPUTER READABLE MEDIUM - A radiation irradiation initiation detection apparatus includes an acquisition unit, an averaging unit, a calculation unit and a determination unit. The acquisition unit acquires a detection result for each of frames from a detection section that detects radiation. The averaging unit averages the detection results of a plural number of frames, which detection results have been previously acquired by the acquisition unit. The calculation unit calculates at least one of a difference or a ratio between the most recent detection result acquired by the acquisition unit and an averaging result from the averaging unit. The determination unit determines whether or not irradiation of radiation has been initiated on the basis of calculation results from the calculation unit. | 08-01-2013 |
20130206997 | RADIATION MONITOR AND HAND-FOOT CLOTH MONITOR INCLUDING HAND MONITORING UNIT - A radiation monitor and a hand-foot-cloth monitor include a hand monitoring unit capable of accurately measuring surface contamination regardless of the size of the hand of the examinee. A hand monitoring unit ( | 08-15-2013 |
20130206998 | RADIATION DETECTION DEVICE, RADIOGRAPHIC IMAGE CAPTURE DEVICE, RADIATION DETECTION METHOD AND PROGRAM STORAGE MEDIUM - A radiation detection device includes a radiation detection sensor, a first integration section, a second integration section and a determination section. The first integration section obtains a first integration value by integrating values expressed by signals output from the sensor over a predetermined period of time. The second integration section obtains a second integration value by integrating amounts of change per specific time duration in values expressed by the signals output from the sensor over the predetermined period of time. The determination section determines whether or not radiation has been detected by the sensor based on a ratio of the first integration value to the second integration value. | 08-15-2013 |
20130228697 | FAST READOUT X-RAY IMAGE SENSOR - Embodiments of the present invention provide a computer-implemented method for parallel readout for an X-ray image sensor module having a pixel array. Specifically, among other things, embodiments of the present invention provide a computer-implemented infrastructure comprising: generating a first pixel data for each pixel within a first pixel row of the pixel array based on a first photon count; generating a second pixel data for each pixel within a second pixel row of the pixel array based on a second photon count; receiving the first serial pixel data at a buffer; transmitting the first serial data to a column bus line; and receiving the second serial pixel data at the buffer, wherein the second serial pixel data is received at the buffer in parallel to the transmitting the first serial data to the column bus line. | 09-05-2013 |
20130248729 | X-Ray Detector With Photon-Counting Directly Converting Detector Elements And Method For Temperature Stabilization Of The X-Ray Detector - An X-ray detector with photon-counting directly converting detector elements and a method for the temperature stabilization of at least one detector element of an X-ray detector of a CT system are disclosed, wherein the detector elements use a sensor material which converts incident photons of radiation directly into free-moving charge in the sensor material and wherein with the aid of a circuit arrangement (e.g. an ASIC), the number of incident photons in relation to predefined energy ranges (e.g., to imaging) is determined, wherein the total electrical power of at least one detector element is kept constant regardless of the incident intensity of radiation. | 09-26-2013 |
20130264488 | RADIATION IMAGING APPARATUS, METHOD OF CONTROLLING THE SAME, AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus including pixels; driving lines; a driving circuit; bias lines; an acquisition unit configured to acquire an evaluation value based on a current flowing in the bias line; a determination unit configured to compare the evaluation value with a comparison target value to determine whether radiation is irradiated; a control unit configured to control the acquisition unit and the determination unit; and a storage unit configured to store the evaluation value used in the determination process, is provided. A comparison target value used in a given determination process is based on one or more evaluation values used in one or more determination processes which are performed before the given determination process and in which it is determined that radiation has not been irradiated. | 10-10-2013 |
20130264489 | RADIATION IMAGING APPARATUS, RADIATION IMAGING SYSTEM, AND CONTROL METHOD FOR THE RADIATION IMAGING APPARATUS - A radiation imaging apparatus includes a pixel array including a plurality of pixels arranged in a matrix in which each pixel includes a conversion element configured to convert radiation into a charge and a switch element configured to transfer an electric signal based on the charge, a bias wiring through which the conversion element is supplied with a voltage for the conversion element to convert the radiation into the charge, a power supply unit configured to supply the voltage to the bias wiring; and a detecting unit configured to detect start of radiation irradiation to the pixel array, in which the detecting unit includes a detecting circuit configured to detect the start of the radiation irradiation to the pixel array on the basis of a comparison result through computation on at least two currents flowing through at least two bias wirings among the plurality of bias wirings. | 10-10-2013 |
20130264490 | RADIATION IMAGING APPARATUS, RADIATION IMAGING SYSTEM, AND CONTROL METHOD FOR THE RADIATION IMAGING APPARATUS - A radiation imaging apparatus includes a pixel array including a plurality of pixels arranged in a matrix in which each pixel includes a conversion element configured to convert radiation into a charge and a switch element configured to transfer an electric signal based on the charge, a plurality of wirings arranged in the pixel array, and a detecting unit configured to detect radiation irradiation to the pixel array, in which the detecting unit includes a detecting circuit configured to detect the radiation irradiation to the pixel array on the basis of a plurality of currents flowing through the plurality of wirings detected for each of the plurality of wirings. | 10-10-2013 |
20130270447 | X-RAY DETECTOR ASSEMBLY WITH SHIELD - An X-ray detector assembly includes an integrated circuit, which includes an array of detector elements and a readout circuit adjacent to the array and coupled to read charge out of the detector elements. A non-metallic shield is positioned over the readout circuit so as to prevent X-rays from striking the readout circuit. | 10-17-2013 |
20130270448 | RADIATION IMAGE ACQUISITION DEVICE, AND IMAGE PROCESSING METHOD - An image processing device of a radiation image acquisition device ( | 10-17-2013 |
20130284941 | RADIATION DETECTION SIGNAL PROCESSING METHOD AND SYSTEM - A radiation detection signal processing method and a radiation detection signal processing system using the method are provided, which combine trigger signals and time mark information. The method includes: providing a radiation detection signal processing system having a plurality of front-end detectors, where each front-end detector detects a radiation event to generate a corresponding energy signal; generating a corresponding trigger signal according to the corresponding energy signal; generating a first signal and a second signal according to all trigger signals; and obtaining time differences among the trigger signals according to the first signal and the second signal, converting the time differences into a set of time marks, merging all of the trigger signals and the set of time marks into a hybrid time signal, and transmitting the hybrid time signal to a hybrid event coincidence detection circuit. | 10-31-2013 |
20130292577 | DIGITAL X-RAY DETECTOR - There is provided a digital X-ray detector including an X-ray detection array configured to detect an X-ray image when a subject is irradiated with X-ray; a support board supporting a bottom of the X-ray detection array; a case accommodating both the X-ray detection array and the support board and having a plurality of insertion portions formed on four sidewalls thereof; and shock abortion members, each installed to each of the insertion portion and having a head resting on an outer wall of the case and a protrusion extended from the head to thereby be in contact with a sidewall of the support board. | 11-07-2013 |
20130306877 | X-RAY DETECTOR - An x-ray detector, especially for a computed tomograph, includes a number of detector modules arranged next to one another in a stacking direction with a front side, which during operation is oriented towards an x-ray source, and with a rear side lying opposite the front side. For screening against x-rays which pass during operation through an installation between two adjacent detector modules, an absorption element is positioned on the rear side of the two adjacent detector modules. | 11-21-2013 |
20130313441 | Soft Error Detection - An apparatus includes a first radiation detector to generate a first signal when a first radiation level is exceeded and a second radiation detector to generate a second signal when a second radiation level is exceeded. The second radiation level is greater than the first radiation level. A first circuit is susceptible to soft errors at the first radiation level and a second circuit is susceptible to soft errors at the second radiation level. A control unit may suspend use of the first circuit and activate use of the second circuit if the first signal is received and the second signal is not received. The first and second circuits may be memory cells or logic circuits. | 11-28-2013 |
20130320224 | RADIATION IMAGE CAPTURING DEVICE, RADIATION IMAGE CAPTURING SYSTEM, COMPUTER READABLE MEDIUM AND RADIATION IMAGE CAPTURING DEVICE CONTROL METHOD - A radiation image capturing device is provided with plural pixels, a detection unit and a control unit. The pixels are each provided with a sensor portion and a switching element that reads out charges generated at the sensor portion and outputs the charges to a signal line. The detection unit detects the start of irradiation if electronic signals according to the charges satisfy a pre-specified condition for irradiation detection. After the start of irradiation of radiation is detected, the control unit acquires electronic signals corresponding to the charges and determines whether the acquired electronic signals include an electronic signal caused by noise. If the electronic signal caused by noise is included, the control unit controls a reporting unit so as to report this. | 12-05-2013 |
20130327949 | HIGH-RESOLUTION COMPACT GAMMA BURST DETECTOR - The invention relates to a plane detector for a gamma ray burst imager, the detector comprising a multilayer ceramic interconnection circuit between external connectors and a processor circuit fastened on a rear face of the circuit and a detection module fastened on a front face of the circuit. The detection module includes a support having a rear face fastened to the circuit and a front face on which sensors are fastened, and a high voltage electrical connection device having a through portion passing through the support and extending between two adjacent sensors in order to connect a connection pad of the circuit to a conductive grid that extends at least in part between the sensors and that is electrically connected to a free face of each sensor. | 12-12-2013 |
20130334436 | IMAGE PICKUP UNIT AND IMAGE PICKUP DISPLAY SYSTEM - An image pickup unit includes: a plurality of pixels each including a photoelectric conversion device and a field-effect transistor; and a readout control line and a signal line that are disposed in a peripheral region of the photoelectric conversion device and are connected to the transistor. The readout control line includes a first wiring layer and a second wiring layer that are laminated and are electrically connected to each other. The first wiring layer is electrically connected to a gate electrode of the transistor, and the second wiring layer is provided in a same layer as the signal line. | 12-19-2013 |
20130341525 | RADIATION IMAGE CAPTURING APPARATUS AND RADIATION IMAGE CAPTURING SYSTEM - A radiation image capturing apparatus includes a control unit. The control unit alternately carries out (a) a leak data readout process to read out electric charges leaking from radiation detection elements via switch elements set in an OFF state as leak data and (b) a reset process of the radiation detection elements. When a value of the leak data read out in the leak data readout process is equal to or greater than a threshold, the control unit repeats the leak data readout process, skipping the reset process. The control unit detects start of irradiation of the radiation image capturing apparatus when a value of the leak data read out in the repeated readout process is again equal to or greater than the threshold, and does not detect start of the irradiation when the value is smaller than the threshold. | 12-26-2013 |
20140001371 | RADIATION DETECTION DEVICE AND RADIATION TOMOGRAPHIC APPARATUS, AND METHOD FOR ASSEMBLING RADIATION DETECTION DEVICE | 01-02-2014 |
20140021364 | X-RAY ANALYSIS APPARATUS, X-RAY ANALYSIS SYSTEM, X-RAY ANALYSIS METHOD, AND X-RAY ANALYSIS PROGRAM - An X-ray analysis apparatus converts an X-ray intensity distribution of discrete data determined for each pixel, from a first plane where the distribution is known into a second plane where the distribution is not known. The X-ray analysis apparatus projects onto the second plane, a grid point which specifies a pixel on the first plane and an intermediate point between the grid points, as nodes, calculates an area of a region where a polygon expressing a projected pixel specified by the projected nodes overlaps with each pixel on the second plane, to thereby calculate an occupancy ratio of the polygon expressing the projected pixel to each pixel on the second plane and distributes X-ray intensity in the pixel on the first plane to the pixel on the second plane based on the occupancy ratio, to thereby convert the X-ray intensity distribution. | 01-23-2014 |
20140042333 | X-RAY DETECTOR AND METHOD FOR OPERATING AN X-RAY DETECTOR - An x-ray detector is disclosed, in particular for a medical imaging device. The x-ray detector includes an anti-scatter grid, a measuring layer including a regular arrangement of measuring cells, and an evaluation unit. The anti-scatter grid covers the measuring layer and is aligned toward a specific focal point. The evaluation unit is configured to determine a focal position of an x-ray source relative to the focal point based on a local intensity difference of x-rays striking the measuring layer. A medical imaging device including the x-ray detector is also disclosed, along with a method for operating the x-ray detector. | 02-13-2014 |
20140048715 | RADIATION DETECTION ELEMENT AND RADIOGRAPHIC IMAGING DEVICE - The present invention provides a radiation detection element and a radiographic imaging device that may provide optimal resolution that corresponds to the purpose of imaging and to imaging speed, and that may suppress increase in device size. Namely, TFTs of plural pixels in a column direction are connected to the same signal lines. When a moving image is imaged, a control signal is output via a control line, the TFTs of the pixels are turned on, and the charges are read-out from sensor sections. Since the two pixels×two pixels are operated as one pixel and the charges are extracted, resolution may be lowered when compared with a still image and a frame rate may be improved. | 02-20-2014 |
20140048716 | LOW POWER TDC-ADC AND ANGER LOGIC IN RADIATION DETECTION APPLICATIONS - A diagnostic imaging device includes a signal processing circuit ( | 02-20-2014 |
20140061496 | RADIOGRAPHIC IMAGING DEVICE AND COMPUTER READABLE MEDIUM - There is provided a radiographic imaging device including: a radiation detector including plural radiographic image acquisition pixels that are arranged in a matrix in an imaging region for capturing a radiographic image and that acquire image information representing the radiographic image by converting applied radiation into electric charges and storing the electric charges and plural radiation detection pixels that are arranged in the imaging region, that have mutually different characteristics, and that detect the applied radiation by converting the applied radiation into electric charges and storing the electric charges; and a detecting unit that uses the radiation detection pixels selectively according to the characteristics to detect a state of application of the radiation. | 03-06-2014 |
20140110594 | MULTI-ENERGY X-RAY IMAGING - An imaging method includes obtaining a first image data for a subset of a target region, the subset of the target region having a first metallic object, obtaining a second image data for the target region, and using the first and second image data to determine a composite image. A imaging system includes a first detector configured to provide a first projection data using a first radiation having high energy, and a second detector configured to provide a second projection data using a second radiation having low energy, wherein the first detector has a first length, the second detector has a second length, and the first length is less than 75% of the second length. | 04-24-2014 |
20140110595 | RADIATION IMAGING APPARATUS, METHOD FOR CONTROLLING THE SAME, AND RADIATION IMAGE DETECTION DEVICE - A determination section of an FPD checks external information against a determination table and determines whether detection of a rise of X-ray pulses is allowed based on an output voltage from a short-circuited pixel. The FPD detects X-ray images. The external information is transmitted from an imaging control device. The X-ray pulses are sequentially generated by an X-ray generating apparatus. A controller selects a pulse irradiation mode in a case where the detection of the rise of the X-ray pulse is allowed. If not, a successive irradiation mode is selected. In the pulse irradiation mode, the rise and the fall of the X-ray pulse are detected and timing of storage operation is synchronized with the detected timing of the rise. In the successive irradiation mode, the storage operation is performed at predetermined time intervals without the detection of the rise and the fall of the X-ray pulse. | 04-24-2014 |
20140117247 | DUAL MODE PIXEL ARRAY DETECTOR - Devices for detecting electromagnetic radiation, and method of configuring the devices, are disclosed. In one aspect, a pixel array detector includes a plurality of dual-mode pixels arranged in an array. Each dual-mode pixel includes a mixed-mode sensor configured to detect accumulated charge created by electromagnetic radiation incident on the pixel. Each dual-mode pixel further includes a digital-mode sensor configured to count individual photons incident on the pixel. Each dual-mode pixel includes a switch configured to selectively couple the mixed-mode sensor and the digital sensor with a diode associated with the pixel. The pixel array detector further includes a controller configured to configure each pixel of the plurality of dual-mode pixels into either mixed-mode or the digital-mode. | 05-01-2014 |
20140131588 | RADIATION DETECTOR - There is provided a radiation detector which shortens the data read time to outside in accordance with the necessity to increase the frame rate. A radiation detector | 05-15-2014 |
20140138555 | ON-DIE ELECTRIC COSMIC RAY DETECTOR - Described is a chip comprising: a substrate; a logic unit forming an active circuit on the substrate; and a cosmic ray detector embedded in the substrate, the cosmic ray detector to detect a cosmic ray and to generate a signal indicating detection of the cosmic ray, the signal for reducing error in the logic unit. | 05-22-2014 |
20140138556 | COLLIMATORS FOR SCAN OF RADIATION SOURCES AND METHODS OF SCANNING - Collimators for two-dimensional scans of a radiation sources and methods of scanning are provided. One system includes a scan unit for scanning and collecting ionizing radiation emitted from a radiation emitting object is provided. The scan unit includes an array of at least one pixelated radiation detector having an imaging surface including a two-dimensional (2D) array of pixels. The scan unit also includes a collimator positioned between the radiation detector and the radiation emitting object, with the collimator including a 2D array of columns having openings and septa forming bores, wherein the columns are arranged in groups along rows of the 2D array of columns and the bores within one of the groups have a different aspect ratios than the bores in another one of the groups. | 05-22-2014 |
20140158898 | RADIATION IMAGE CAPTURING SYSTEM - Disclosed is a radiation image capturing system. The radiation image capturing system includes a radiation image capturing apparatus and a capturing control apparatus. The radiation image capturing apparatus detects irradiating timing of radiation. The capturing control apparatus is able to communicate data to control the radiation image capturing apparatus. The capturing control apparatus includes, a storage section which stores capturing order information corresponded with a detecting condition of irradiating timing of radiation; an obtaining section which obtains capturing order information; and a first control section which reads the detecting condition corresponded to the obtained capturing order information and which transmits the read detecting condition to the radiation image capturing apparatus. The radiation image capturing apparatus includes a second control section which detects the irradiating timing based on the detecting condition. | 06-12-2014 |
20140158899 | IMAGING DEVICE AND IMAGING DISPLAY SYSTEM - According to an aspect, an imaging device includes: a plurality of pixels each including a photoelectric conversion element and arranged on a same plane; a transparent electrode provided on a surface of the photoelectric conversion element; a plurality of first conductors, each of which is electrically coupled to the transparent electrode corresponding to one photoelectric conversion element at a plurality of points and provided to the transparent electrode corresponding to one photoelectric conversion element; and a second conductor that is provided between adjacent pixels and electrically couples the first conductors, and also electrically couples the first conductors between the adjacent pixels. | 06-12-2014 |
20140158900 | PHOTON-COUNTING DETECTOR AND READOUT CIRCUIT - A photon-counting detector configured to detect photons included in multi-energy radiation. The photon-counting detector includes a pixel area configured to absorb photons incident thereto, and bias circuits configured to supply one of a bias voltage and a bias current to electronic devices in the pixel area, wherein the bias circuits are in the pixel area. | 06-12-2014 |
20140175299 | Counting Digital X-Ray Detector and Method for Recording an X-Ray Image - A counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation includes a direct x-ray converter for converting x-ray radiation into an electric signal and a matrix with a plurality of counting pixel elements. At least one part of the counting pixel elements has a signal input and two circuits for converting the signal into a count signal. A first circuit of the two circuits is configured to convert the signal entering the respective pixel element directly into a count signal and to count the count signal. A second circuit of the two circuits is configured to convert the signal entering directly into the respective pixel element together with coincident occurring signals of at least one neighboring pixel element into a count signal and to count the count signal. The first circuit and/or the second circuit are able to be activated individually and both together. | 06-26-2014 |
20140183373 | PORTABLE RADIATION IMAGE CAPTURING APPARATUS AND RADIATION IMAGE CAPTURING SYSTEM - A portable radiation image capturing apparatus is described. In the portable radiation image capturing apparatus multiple image capturing elements are two-dimensionally arranged, the apparatus is provided with a current detecting means for detecting a current flowing in the apparatus, a read-out circuit having a power supply mode in which the charge generated in each image capturing element can be read out and converted into an electric signal and a stand-by mode in which charge is not read out and power is consumed less than in the power supply mode, and a control means for causing the read-out circuit to change from the stand-by mode to the power supply mode when detecting start of irradiation with radiation on the basis of an increase in the current value detected by the current detecting means while the read-out circuit is in the stand-by mode. | 07-03-2014 |
20140183374 | X-RAY IMAGING APPARATUS, MEDICAL IMAGE PROCESSING APPARATUS, X-RAY IMAGING METHOD AND MEDICAL IMAGE PROCESSING METHOD - According to one embodiment, an X-ray imaging apparatus includes an X-ray image acquisition unit, a reference position acquisition part and a condition setting part. The X-ray image acquisition unit is configured to acquire frames of two dimensional X-ray image data corresponding to mutually different X-ray exposure directions using an imaging system. The reference position acquisition part is configured to obtain a spatially criterial direction and a spatially criterial position with reference to the frames of the X-ray image data. The condition setting part is configured to automatically set at least one of a control condition of the imaging system and an image processing condition of an X-ray image, based on information according to the criterial direction and the criterial position. | 07-03-2014 |
20140191136 | PHOTON COUNTING IMAGING METHOD AND DEVICE WITH INSTANT RETRIGGER CAPABILITY - A method for photon counting imaging with improved high-rate counting performance includes the step of applying an instant retrigger capability with adjustable dead time in cells of the detector array and operates an apparatus using a layer of photo-sensitive material, an L×K array of photodetector elements arranged in the layer of the photosensitive material, an N×M array of readout unit cells, including amplifying elements and at least one readout unit cells for at least one photodetector elements. The readout unit cells are controlled by signal processing elements with each readout unit cell having internal signal processing elements to generate a discriminator output signal representing an amplified signal of the electron-hole pairs generated by an incident photon or a number of incident photons in the respective photodetector element. The discriminator output signal is generated by comparing the amplified signal with a predetermined threshold level and the discriminator output signal is generated whenever the amplified signal exceeds the threshold level. | 07-10-2014 |
20140217301 | INSTRUMENT FOR ASSAYING RADIATION - An instrument for assaying radiation includes a radiation sensor and a collimator that covers at least a portion of the radiation sensor. The collimator defines a first field of view to the radiation sensor. An insert in the collimator defines a second field of view to the radiation sensor that is less than the first field of view. | 08-07-2014 |
20140217302 | Matrix of Pixels with Programmable Clusters - An imaging device comprising a matrix ( | 08-07-2014 |
20140231662 | RADIATION IMAGING APPARATUS AND METHOD OF CONTROLLING RADIATION IMAGING APPARATUS - A radiation imaging apparatus includes: a radiation imaging unit configured to include a housing and a detection unit having a rectangular imaging region, the detecting unit being placed at a position in the housing at which a distance from one side surface of the housing to the imaging region is shorter than a distance from another side surface to the imaging region; a rotating unit configured to rotate the radiation imaging unit about a rotation axis in a direction intersecting with the imaging region; and a control unit configured to control rotation of the rotating unit so as to orientate one side surface of the housing, a distance from which to the imaging region is short, to a direction corresponding to an imaging condition. | 08-21-2014 |
20140239187 | RADIATION IMAGING APPARATUS AND RADIATION IMAGING SYSTEM - A radiation imaging apparatus includes a pixel array in which a plurality of pixels which detects radiation are arrayed to form a plurality of rows and a plurality of columns, a detection circuit which detects information having correlation to a radiation dose to the pixel array and output a detection signal corresponding to the information, and a control unit which detects radiation irradiation to the pixel array based on a plurality of integrated values obtained by integrating one of the detection signal and a result of processing applied to the detection signal in a plurality of integral intervals and control the pixel array in accordance with the detection. | 08-28-2014 |
20140239188 | RADIATION IMAGING APPARATUS, RADIATION IMAGING SYSTEM, METHOD FOR RADIATION IMAGING, AND STORAGE MEDIUM - A radiation imaging apparatus includes a reset control unit configured to perform reset scanning to sequentially discharge charges accumulated in pixels; an irradiation detection unit configured to detect a start of radiation irradiation based on charges discharged by the reset scanning; an imaging control unit configured to perform control to stop the reset scanning in accordance with detection of the start of irradiation and obtain an image signal by reading out charges accumulated in the pixels; a generation unit configured to generate image data based on the image signal except for an image signal from a pixel on which the reset scanning is performed during the radiation irradiation; and an output unit configured to output the image data to an external apparatus. | 08-28-2014 |
20140239189 | RADIOGRAPHIC IMAGE CAPTURING APPARATUS AND RADIOGRAPHIC IMAGE CAPTURING SYSTEM - A radiographic image capturing apparatus and a radiographic image capturing system are shown. According to one aspect, the radiographic image capturing apparatus includes the following. A scanning driving unit applies voltage to scanning lines. A switching element releases electric charge upon application of the ON-state voltage. A readout circuit converts the electric charge into image data and reads the data. A controller reads the image data. The detecting unit detects start and end of irradiation based on a change in a signal. The controller determines whether a standby time from end of readout to start of readout in next capturing is changed with reference to a first period and a second period. The first period ranges from end of readout to detection of start of irradiation. The second period ranges from detection of end of irradiation to start of readout. | 08-28-2014 |
20140252243 | RADIOGRAPHIC APPARATUS AND METHOD FOR CONTROLLING RADIOGRAPHIC APPARATUS - Upon detecting irradiation of X-rays, an X-ray imaging apparatus stops driving scanning lines and makes a transition into an electric charge accumulating state. The X-ray imaging apparatus transmits, to an image processing apparatus, a digital value of a current that flows through a bias line at a timing at which the electric charge accumulating state starts and a scanning line number for identifying a scanning line on which the scan has stopped as defect correction information. | 09-11-2014 |
20140252244 | RADIATION DETECTION APPARATUS - A radiation detection apparatus is provided with a detection element group which includes a plurality of detection elements arranged on a support substrate, a shield body of which a pinhole is formed on front surface and a slit is formed on back surface, the shield body putting the detection element group therein, a signal processing substrate which processes a detection signal respectively detected by each detection element, is provided outside of the shield body, and has a dimension being larger than a width of the slit, and a relay substrate which goes through the slit and connects each detection element with the signal processing substrate. | 09-11-2014 |
20140264061 | MOBILE RADIATION IMAGING APPARATUS, METHOD FOR CONTROLLING MOBILE RADIATION IMAGING APPARATUS, AND STORAGE MEDIUM - A mobile radiation imaging apparatus includes: an irradiation unit that emits radiation; a moving unit that moves with the irradiation unit; an imaging unit that takes an image of an object irradiated with radiation and is able to transmit the image via the wireless communication or the wired communication; an obtaining unit that obtains information indicating in which area the moving unit is located among a wired communication area, a wirelessly communicable area, and a switching area for switching between the wireless communication and the wired communication; and a control unit that switches the communication with the imaging unit depending on the obtained information. | 09-18-2014 |
20140284492 | PHOTON COUNTING DETECTOR TO GENERATE HIGH-RESOLUTION IMAGES AND HIGH-CONTRAST IMAGES, AND PHOTON COUNTING AND DETECTING METHOD USING THE SAME - A photon counting detector and a photon counting and detecting method using the same is provided. The photon counting detector includes readout circuits configured to count photons in multi-energy radiation incident to a sensor, the photons being counted with respect to each of a plurality of energy bands of the multi-energy radiation, the readout circuits respectively corresponding to pixels of a region onto which the multi-energy radiation is irradiated, each of the readout circuits being configured to count photons in a predetermined one of the energy bands, at least one of the readout circuits being configured to count photons in at least one of energy bands other than the predetermined one of the energy bands. | 09-25-2014 |
20140291541 | RADIATION IMAGE DETECTING DEVICE AND OPERATING METHOD THEREOF, AND RADIATION IMAGING SYSTEM - Binning readout reads out electric charge accumulated in pixels to signal lines in blocks of a plurality of adjoining pixel-rows. A correction image generator of a line defect corrector scales up an image size of a reference frame image RP outputted by the binning readout and corrects pixel values of the reference frame image RP, to produce a correction image RPC to be used for correction of a line defect occurring in an X-ray image XP. The scale-up is performed by applying row interpolation processing to the reference frame image RP. The correction of the pixel values is performed by multiplying the reference frame image RP after being subjected to the row interpolation processing by a correction coefficient. An adder adds the correction image RPC to the X-ray image XP, and produces an X-ray image XPC in which the line defect is corrected. | 10-02-2014 |
20140299783 | ENERGY HARVESTER FOR WIRELESS, MOTION AND POSITION-SENSING, INTEGRATING RADIATION SENSOR FOR OCCUPATIONAL AND ENVIRONMENTAL DOSIMETRY - An apparatus comprising: a radiation sensor having one or more radiation sensors and an on-board power harvester. | 10-09-2014 |
20140299784 | RADIOACTIVE SUBSTANCE DETECTION DEVICE, RADIATION SOURCE LOCATION VISIBILITY SYSTEM, AND RADIOACTIVE SUBSTANCE DETECTION METHOD - A radioactive substance detection device that detects a radioactive substance being present in a specified direction. A radiation detection element having a thickness that stops and detects a characteristic X-ray arriving from a radioactive substance being present in the specified direction that radiates both gamma rays and the characteristic X-rays, and allows the gamma ray arriving from the radioactive substance to pass through. A screening body having a thickness that screens out characteristic X-rays of radiation which arrives from directions other than the specified direction and allows gamma rays of radiation which arrives from directions other than the specified direction to pass through. | 10-09-2014 |
20140306119 | Beam Monitoring Device, Method, and System - A beam monitoring device, method, and system is disclosed. An exemplary beam monitoring device includes a one dimensional (1D) profiler. The 1D profiler includes a Faraday having an insulation material and a conductive material. The beam monitoring device further includes a two dimensional (2D) profiler. The 2D profiler includes a plurality of Faraday having an insulation material and a conductive material. The plurality of Faraday of the 2D profiler are arranged in a pattern that is offset in a direction. The 1D profiler is coupled to a first end of the 2D profiler and extends beyond two adjacent outer edges of the 2D profiler. The beam monitoring device further includes a control arm. The control arm is operable to facilitate movement of the beam monitoring device in the direction. | 10-16-2014 |
20140306120 | SPIRAL BIASING ADAPTOR FOR USE IN SI DRIFT DETECTORS AND SI DRIFT DETECTOR ARRAYS - A drift detector array, preferably a silicon drift detector (SDD) array, that uses a low current biasing adaptor is disclosed. The biasing adaptor is customizable for any desired geometry of the drift detector single cell with minimum drift time of carriers. The biasing adaptor has spiral shaped ion-implants that generate the desired voltage profile. The biasing adaptor can be processed on the same wafer as the drift detector array and only one biasing adaptor chip/side is needed for one drift detector array to generate the voltage profiles on the front side and back side of the detector array. | 10-16-2014 |
20140319365 | MUON DETECTOR ARRAY STATIONS - Methods, systems, and devices are disclosed for inspecting materials in a vehicle or object. In one aspect, a system for muon tomography detection includes a first and second housing structure each including a first array and second array of muon detection sensors, respectively, the first housing structure positioned opposite the second at a fixed height to form a detection region to contain a target object, in which the muon detection sensors measure positions and directions of muons passing through the first array to the detection region and passing from the detection region through the second array; support structures to position the first housing structure at the fixed height; and a processing unit to receive data from the muon detection sensors and analyze scattering behaviors of the muons in materials of the target object to obtain a tomographic profile or spatial distribution of scattering centers within the detection region. | 10-30-2014 |
20140326894 | PHOTON COUNT CORRECTION - One or more techniques and/or systems are described for addressing (e.g., during calibration) pixel-by-pixel variations in an image modality that utilizes photon counting techniques, such as by adjusting a number of photons detected by certain pixels (e.g., redistributing or reallocating detected photons among pixels). Such variations may cause an effective area of one or more pixels of a detector array to be larger than the effective area of other pixels, resulting in more photons being counted by some pixels than others, which can degrade resulting images. Accordingly, photons are redistributed as provided herein so that, when exposed to substantially uniform radiation, photon counts of neighboring pixels are substantially equal, statistical noise among neighboring pixels is substantially equal, and a signal-to-noise ratio among neighboring pixels is substantially equal. By redistributing photons as described herein, a spatial uniformity and/or a modulated transfer function (MTF) associated with a detector array may be improved. | 11-06-2014 |
20140339436 | BACK SCATTERED ELECTRON DETECTOR - It is an object of the present invention to provide a back scattered electron detector suitable for implementing a method for determining beforehand in which region of a sample an X-ray detector can obtain an accurate X-ray detection image and perform an appropriate analysis. A Coax-BSE detector which is a back scattered electron detector includes a BSE element, a support member that supports the BSE element, and a fixing member to fix the support member to the X-ray detector, in which the fixing member fixes the support member by clamping a side portion on the distal end side which is an X-ray receiving side of a housing that covers the X-ray detector. | 11-20-2014 |
20140346367 | RADIATION IMAGE CAPTURING SYSTEM AND RADIATION IMAGE CAPTURING APPARATUS - Disclosed are a radiation image capturing system and a radiation image capturing apparatus. According to one implementation, the radiation image capturing system includes the radiation image capturing apparatus and a console. The detecting unit of the radiation image capturing apparatus detects start of irradiation using a first detecting method in which power consumption amount is small but a capturing condition with which the start of irradiation can be detected is limited, or a second detecting method in which power consumption amount is large but the start of irradiation can be detected under any capturing condition. The console transmits a capturing condition to the radiation image capturing apparatus. The detecting unit selects the first or second detecting method based on the capturing condition, and performs processing of detecting the start of irradiation using the selected detecting method. | 11-27-2014 |
20140361190 | System and Method for Detecting and Positioning A Radioactive Source - The present disclosure describes systems and methods for the detection and positioning of a radioactive source. In an exemplary embodiment, a detector array is placed in a four-quadrant formation to allow for self-shielding of the individual detectors from the radiation emitted by a radiation source. A further embodiment utilizes a fuzzy logic system and method to analyze the gross count response of each individual detector with respect to the other three to thereby determine a generalized location and direction of a radioactive source. | 12-11-2014 |
20140367581 | RADIATION IMAGE-PICKUP DEVICE AND RADIATION IMAGE-PICKUP DISPLAY SYSTEM - A radiation image-pickup device includes: a drive substrate including a transistor used to read, from each of a plurality of pixels, signal charge based on radiation; a charge collection electrode provided on the drive substrate, for each of the pixels; a conversion layer formed on the charge collection electrode, and configured to generate the signal charge by absorbing radiation; a counter electrode provided on the conversion layer; and a first conductive film disposed, between the drive substrate and the charge collection electrode, to face at least a part of the charge collection electrode, and included in a first capacitive element configured to retain the signal charge. | 12-18-2014 |
20140374616 | Imaging Antenna and Related Techniques - An antenna array includes a plurality of antenna elements. The antenna elements include layers of dielectric material; an antenna inlaid in a top layer of the dielectric material so a surface of the antenna is substantially parallel to an outer surface of the top layer of dielectric material; and a conductive balun, coupled to the antenna, and embedded in one or more layers of the dielectric material. The antenna array is operative to receive signals from V to W frequency band transmissions generated by a heat source. | 12-25-2014 |
20150008330 | LIQUID RESISTANT DIGITAL DETECTOR - A radiographic imaging detector has photoimaging pixels disposed in an array, control electronics for controlling operation of the array to capture radiographic images, and a voltage source for powering the array of photoimaging pixels and the control electronics. A housing with multiple parts encloses at least the array and the control electronics and provides a seating for the voltage source. A first part has a first mating surface, a second part has a second mating surface. The first and second mating surfaces are disposed adjacent to each other and define a gap therebetween with a hydrophobic material deposited along at least one of the first and second mating surfaces. | 01-08-2015 |
20150041667 | SYSTEM AND METHOD FOR CHARACTERIZING FOCUSED CHARGED BEAMS - An apparatus for characterizing a focused charged beam is provided. The apparatus includes a plurality of parallel conducting channels and at least one current sensing unit configured to measure current across each of the plurality of parallel conducting channels. | 02-12-2015 |
20150069257 | PROJECTION DATA BINNING AND IMAGE GENERATION IN PHOTON COUNTING IMAGING MODALITY - Among other things, one or more techniques and/or systems are described for presenting images derived from a photon counting imaging modality. Initially, a first image is derived by binning native projection data in a first manner to create first binned data and generating the first image using the first binned data. A region-of-interest within the object may be identified from the first image, and, based upon the identified region-of-interest, the native projection data may be rebinned in a second, different, manner to create second binned data. Because the second manner of binning the native projection data is different than the first manner, an image resulting from the second binned data may be different than the first image. Moreover, a user interface may be provided for assisting a user in selecting a region-of-interest and/or for specifying desired properties of the second image. | 03-12-2015 |
20150090893 | Counting Digital X-Ray Image Detector with Two Switchable Modes - The embodiments relate to a counting digital x-ray detector for recording x-ray images of an object irradiated by x-ray radiation with at least one detector module, which includes a flat direct converter for converting x-ray radiation into an electrical signal and a matrix with a plurality of counting pixel elements, wherein each counting pixel element includes a charge or signal input, a conversion facility for converting the electrical signal into a count signal, a digital counter for detecting and storing the count signal and a control and readout unit, and wherein the x-ray image detector is embodied such that each pixel element of the x-ray image detector is connected to the corresponding electrodes of the detector material of the direct converter via contacts and in this way is embodied switchably. | 04-02-2015 |
20150293040 | CALCULATION SYSTEM AND CALCULATION METHOD - There is provided a calculating system that can calculate only a gradation image of only a measurement target in monitoring large-scale facility using a transmission imaging on the basis of a cosmic ray. In addition to a gradation image on the basis of a flight track of the cosmic ray, a gradation image of the density length on the basis of structure information of a structural object which is not a measurement target is made and used to correct the gradation image on the basis of the flight track of the cosmic ray. | 10-15-2015 |
20150293239 | RADIATION IMAGE CAPTURING APPARATUS - Disclosed is a radiation image capturing apparatus including the following. A sensor panel includes a plurality of radiation detecting elements aligned two-dimensionally. A case stores the sensor panel. A ventilation hole is provided in the case. A ventilation filter is provided in the ventilation hole and prevents infiltration of liquid into the case. Air flows in and out of the case through the ventilation hole and a thickness of the case is maintained at a predetermined thickness when outside pressure changes. | 10-15-2015 |
20150301200 | RADIOGRAPHIC IMAGE DETECTOR - A flat panel detector (FPD) includes an imaging panel having pixels arranged in a matrix, a gate driver for turning thin film transistors (TFTs) of the pixels ON and OFF, a radiation detecting section for detecting the start of x-ray radiation from the x-ray source, and a controller. The controller controls the gate driver to turn the TFTs ON periodically to reset dark charges of the pixels. Before starting a charge accumulating operation for accumulating signal charges for imaging, the controller controls the gate driver to turn the TFTs OFF so that the radiation detecting section may detect the start of x-ray radiation on the basis of charge leaks from the pixels. When the start of x-ray radiation is detected, the controller starts the charge accumulating operation while keeping the TFTs in the OFF condition. Thereafter, the TFTs are turned ON to read out the accumulated signal charges. | 10-22-2015 |
20150309194 | PORTABLE TYPE RADIATION IMAGE CAPTURING APPARATUS - A portable type radiation image capturing apparatus may include a sensor panel which converts irradiated radiation to an electric signal and which obtains image data; and a case which stores the sensor panel and which is formed from material including carbon fiber. A foam body layer may be embedded in the case. The case may be formed so that a thickness of a layer on an outer side than the foam body layer is thicker than a thickness of a layer on an inner side than the foam body layer. | 10-29-2015 |
20150323680 | METHOD FOR SIMULTANEOUSLY MEASURING THE INDIVIDUAL OUTPUTS OF PARTICLE DETECTORS IN AN ARRAY USING CHARGE DIVISION ELECTRONICS - A detector arrangement for detecting at least one of rays, ions and particles includes a plurality of detectors. Each detector has a respective anode output and the detectors are arranged with the respective anode outputs being in an electrical series. The arrangement includes a plurality of resistive elements interspersed in the electrical series. The arrangement includes a first measurement point at a first end of the electrical series and a second measurement point at a second end of the electrical series. The arrangement includes electrical circuitry, electrically connected to the first and second measurement points for receiving electrical signals/pulses from the first and second measurement points, and for using the electrical signals/pulses from the first and second measurement points to determine which of the plurality of detectors has detected the at least one of rays, ions and particles. | 11-12-2015 |
20150326802 | X-RAY DETECTING METHOD, PHOTOGRAPHING METHOD USING THE X-RAY DETECTING METHOD, AND X-RAY DETECTOR USING THE METHODS - Provided are methods of detecting X-rays, a photographing methods using the X-ray detecting method and/or an X-ray detector using the methods. For example, one method of detecting X-rays includes radiating a first X-ray, removing, by a first X-ray detection unit, a first electric charge generated by the radiated first X-ray, and outputting, by a second X-ray detection unit adjacent to the first X-ray detection unit, a voltage corresponding to the first X-ray. | 11-12-2015 |
20150331018 | ELECTRON BEAM DETECTING DEVICE - An electron beam detecting device detects a state of an electron beam radiated by an electron beam radiation device. A plurality of wire electrodes, which are conductors, are disposed corresponding to a plurality of filaments, the wire electrodes being electrically insulated from each other, in the area in which the electron beams are radiated. The electrical current flowing through each of the wire electrodes is measured by an electric current measuring instrument (measuring unit). A CPU (determining unit) determines the radiation level of the electron beams by receiving a signal output by the electric current measuring instrument. The CPU judges that when the measuring instrument measures a decrease of the current value, an abnormal condition exists in the filament corresponding to the conductor with the lower current value. | 11-19-2015 |
20150331116 | RADIATION IMAGING APPARATUS, METHOD OF DETERMINING RADIATION IRRADIATION, AND STORAGE MEDIUM - A radiation imaging apparatus includes a plurality of detection apparatuses configured to output image data based on radiation. The apparatus includes measurement units configured to respectively measure radiation detection levels in the plurality of detection apparatuses; and an irradiation determination unit configured to determine presence/absence of radiation irradiation based on the measured detection levels. | 11-19-2015 |
20150338530 | RADIOGRAPHIC IMAGE CAPTURING APPARATUS AND CONTROL METHOD THEREOF - A radiographic image capturing apparatus, comprising a plurality of sensors arrayed on a substrate, a driving unit, a detection unit and a control unit, wherein the control unit is configured to perform a first control controlling the driving unit so as to repeatedly initialize the plurality of sensors on a row-by-row basis before a start of emission of radiation, and a second control controlling the driving unit so as to interrupt the initialization in response to a detection signal from the detection unit and cause the plurality of sensors to output signals, and the apparatus further comprises a determination unit configured to determine whether or not the detection signal is a signal which was output in response to the start of emission of radiation. | 11-26-2015 |
20150338533 | RADIATION CAMERA SYSTEM AND METHOD - A radiation camera system and method incorporating a radiation sensor/detector (RSD) and automated operation of coded camera aperture masks (CAMs) is disclosed that may be advantageously applied to real-time tracking of radiological hot spots in crisis, maintenance, decontamination, and/or maintenance scenarios. The system/method integrates automated camera RSD positioning, CAM identification, and CAM rotation. The system incorporates computerized controls in conjunction with remotely controlled horizontal/vertical tilting motors to direct the RSD aperture position and view of the RSD. CAMs may be installed in the camera manually and are automatically identified by the system via the use of encoding magnets that are detected using a Hall-effect sensor. The CAMs may be rotated after installation in the camera by computer control to predefined positions such as “mask” and “anti-mask” to affect the desired degree of radiation screening to be applied to the RSD. | 11-26-2015 |
20150346355 | POSITION AND ORIENTATION DETERMINATION SYSTEM AND METHOD - A position determination system and method is provided that may be used for obtaining position and orientation information of a detector in a contaminated room. The system includes a detector, a sensor operably coupled to the detector, and a motor coupled to the sensor to move the sensor around the detector. A CPU controls the operation of the motor to move the sensor around the detector and determines distance and angle data from the sensor to an object. The method includes moving a sensor around the detector and measuring distance and angle data from the sensor to an object at incremental positions around the detector. | 12-03-2015 |
20150346356 | SYSTEM AND METHOD FOR IDENTIFYING RADIATION IN A CONTAMINATED ROOM - A system for identifying the location of radioactive material in a contaminated room includes a projector, a distance sensor, and a CPU operably connected to the projector and distance sensor. The CPU receives distance data from the distance sensor and controls an image projected by the projector onto an object in the contaminated room. A method of identifying the location of radioactive material in a contaminated room includes conducting a radiation survey of the contaminated room and transferring information from the radiation survey to a projector. The method further includes placing the projector in the contaminated room and projecting information from the radiation survey onto an object in the contaminated room. | 12-03-2015 |
20150355343 | ON-DIE ELECTRIC COSMIC RAY DETECTOR - Described is a chip comprising: a substrate; a logic unit forming an active circuit on the substrate; and a cosmic ray detector embedded in the substrate, the cosmic ray detector to detect a cosmic ray and to generate a signal indicating detection of the cosmic ray, the signal for reducing error in the logic unit. | 12-10-2015 |
20150364216 | RADIATION UPSET DETECTION - A radiation upset detector is provided. The radiation upset detector includes at least one radiation sensitive memory initialized with at least one respective known-signature word; and at least one radiation hardened logic circuitry communicatively coupled to the at radiation sensitive memory to check the known-signature word at at least a kHz rate to detects errors. Responsive to detecting an error in the known-signature word in the radiation sensitive memory, the radiation hardened logic circuitry sends an action command. At least one of: a memory size of the memory; a number of circuits in the logic circuitry; a clock rate for the checking the known-signature word; and at least one corruption threshold is selected based on system reliability requirements of the protected system including at least one of: an overall operational reliability requirement of the protected system; a probability of detection success; false alarm rates; and a required speed of detection. | 12-17-2015 |
20150378034 | RADIATION IMAGING APPARATUS, DRIVING METHOD FOR THE SAME, AND NON-TRANSITORY COMPUTER-READABLE MEDIUM - A radiation imaging apparatus, comprising a plurality of sensors and a driving unit, each sensor including a detection element, a sampling unit and a reset unit, wherein the driving unit performs an operation of causing the reset unit to initialize the detection element, an operation of causing the sampling unit to sample a signal from the detection element in accordance with radiation irradiation started after the operation of initializing, and an operation of outputting a signal sampled by the operation of sampling, and wherein the driving unit changes, in accordance with a frame rate, a timing of the operation of outputting while maintaining constant a time from the operation of initializing to the operation of sampling. | 12-31-2015 |
20160021290 | RADIATION IMAGE CAPTURING APPARATUS AND METHOD OF DRIVING THE SAME - A radiation image capturing apparatus, comprising a sensor configured to monitor an irradiating dose of radiation, a switch configured output a sensor signal from the sensor, a readout unit configured to read out the sensor signal via a signal line, and a controlling unit, wherein the controlling unit performs first control of repeatedly performing, while the sensor is irradiated, a series of operations including a first operation of setting the switch to a conductive state and a second operation of setting the switch to a non-conductive state, second control of reading out the sensor signal in the first operation as a first signal and a potential of the signal line in the second operation as a second signal, and third control of calculating the irradiating dose of radiation based on the first signal and the second signal. | 01-21-2016 |
20160029986 | MANAGEMENT APPARATUS - A management apparatus which manages an image captured in a radiation detection apparatus by irradiation with radiation, manages imaging information which is input by a user and serves as information for imaging, obtains the captured image, and associates the obtained image with the imaging information. The management apparatus, when a mis-exposure notification is received from the radiation detection apparatus and manages the necessary imaging information, obtains the captured image. | 02-04-2016 |
20160047754 | LIGHT DEFLECTION DETECTION MODULE AND MEASUREMENT AND CALIBRATION METHOD USING THE SAME - A light deflection detection module with a detection stage, a surface light source, at least two scanning cameras and a standard surface is provided. The detection stage is utilized for supporting an object. The surface light source is disposed above the detection stage, and emits a planar light to the detection stage. The at least two scanning cameras are disposed opposite the surface light source. The standard surface is disposed adjacent to the detection stage. When the surface light source emits the planar light to the detection stage, the planar light will be reflected by the surface of the object and the standard surface first, and then received by the at least two scanning cameras. A processor will perform a numerical analysis on the reflected planar light to obtain the detection data and to make the error correction. | 02-18-2016 |
20160054457 | PRODUCTION METHOD OF A SENSOR CHIP AND COMPUTERIZED TOMOGRAPHY DETECTOR - A sensor chip, in particular for computerized tomography detectors, including an analog-digital converter electrically connected to an element detecting radiation. A problem addressed is that of defining a sensor chip which is as cost-efficient and reliable as possible. According to an embodiment of the invention, only one single crystalline base plate is used, on which all required components of the sensor chip are applied. A through-contact between the conductor paths or the contacts of both sides of the base plate is used as applicable in order to connect the components of both sides to each other. | 02-25-2016 |
20160070020 | Method For Autonomous Self-Blanking by Radiation Portal Monitors to Minimize the Interference From Pulsed X-Rays Radiation - A system and associated method for isolating intended radiation signals for determining target characteristics includes multiple detectors for detecting radiation signals having varying energies, delay modules for delaying the detected radiation signals and a discriminator associated with the multiple detectors for determining if detected radiation signals include unintended radiation signals, e.g., x-rays, and provided blanking signals to a switch in order to effectively remove the unintended radiation signals from the data that is presented to the processor for determining target characteristics. | 03-10-2016 |
20160084704 | RADIATION IMAGING APPARATUS - A radiation imaging apparatus includes a radiation detection panel configured to detect radiation irradiated by a radiation generation unit, a first member and second member arranged on the incident direction side of the radiation, and a third member and fourth member arranged on a side opposite to the incident direction of the radiation. The second member is arranged between the first member and the radiation detection panel, and the third member is arranged between the radiation detection panel and the fourth member. The second member and the third member are lower in elastic modulus than the first member and the fourth member, and the elastic modulus of the second member is equal to or lower than that of the third member. | 03-24-2016 |
20160100812 | X-RAY DETECTOR AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing an X-ray detector includes: applying a mask having an opening on a substrate on which a plurality of charge detection units are positioned; filling the opening with a paste including a photoelectric conversion material that absorbs X-rays to generate charges; and forming a photoconductive layer from the paste by separating the mask from the substrate. A thickness of the paste within the opening is thicker in an area adjacent to at least one edge among edges of the opening than in areas around other edges. | 04-14-2016 |
20160170038 | DETECTOR SYSTEM OF CT SCANNER | 06-16-2016 |
20160178758 | RADIATION DETECTION APPARATUS AND RADIATION IMAGING SYSTEM | 06-23-2016 |
20160189921 | Compact Particle Sensor - An energy sensor is provided including a collimator comprising a plurality of sensor apertures aligned in a plurality of directions configured to allow passage of an energetic particle or photon in a specific direction for respective apertures of the plurality of sensor apertures and at least one energy detector configured to measure the energetic particle or photon including a plurality of detector segments. Respective detector segments of the plurality of detector segments are aligned with the respective sensor apertures and a detector segment which measures the energetic particle or photon is indicative of a directionality of the energetic particle or photon. | 06-30-2016 |
20160198999 | DOSIMETER SYSTEM | 07-14-2016 |
20160377737 | RADIATION IMAGING APPARATUS AND CONTROL METHOD THEREOF - A radiation imaging apparatus that includes a plurality of sensors and a control unit, wherein the control unit performs a first control of monitoring, after a radiation irradiation is started, a signal of a first sensor and accumulating the monitored signal of the first sensor, a second control of outputting, in response to a calculated value obtained by the accumulation and reaching a target value, a control signal to end the radiation irradiation, and a third control of reading out, after the radiation irradiation is ended, the signals of the respective plurality of sensors, and the control unit changes a monitoring cycle of the first control based on the target value and an elapsed time since the radiation irradiation has been started. | 12-29-2016 |
20220137253 | Method for Characterizing a Radiation Source by a Radiation Portal Monitoring System - A method for characterizing a radiation source by a radiation portal monitoring system is described, the radiation portal monitoring system including a plurality of detectors including radiation detectors configured to detect ionizing radiation of the radiation source and to generate a detection signal responsive to detection of the ionizing radiation, and a control system including at least one processor executing the steps of: assigning an identification address to each detector; selecting a set of at least two detectors using the identification addresses; assigning an effective portal area to the selected set of detectors; receiving via a communication network a detection signal generated by the detectors of the selected set, using the identification addresses of the detectors of the selected set; and characterizing the radiation source associated with the effective portal area using the detection signal of the detectors of the selected set. | 05-05-2022 |