| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 250371000 | Methods | 33 |
| 20080203313 | DEPTH SENSING IN CdZnTe PIXEL DETECTORS - Interaction depth of photons in a CdZnTe pixel detector is measured by configuring an ASIC connected to the detector to measure both positive polarity and negative polarity signal amplitudes and then measuring a core pixel having positive signal amplitude and hallow pixels having negative signal amplitude and surrounding the core pixel. | 08-28-2008 |
| 20080272305 | Radiation Detected Value Forecasting Method and Forecast Responsive Radiation Detector - In a radiation detector, a response is approximated as a primary delay system, and when a time constant T indicating the characteristic of the response is known, a final response value N | 11-06-2008 |
| 20090114832 | SEMICONDUCTIVE MATERIALS AND ASSOCIATED USES THEREOF - High rate radiation detectors are disclosed herein. The detectors include a detector material disposed inside the container, the detector material containing cadmium, tellurium, and zinc, a first dopant containing at least one of aluminum, chlorine, and indium, and a second dopant containing a rare earth metal. The first dopant has a concentration of about 500 to about 20,000 atomic parts per billion, and the second dopant has a concentration of about 200 to about 20,000 atomic parts per billion. | 05-07-2009 |
| 20090242782 | SURFACE DIODE SENSOR FOR MEGAVOLTAGE RADIATION THERAPY MACHINES WITH REDUCED ANGULAR SENSITIVITY - An improved diode sensor for calibration of megavoltage radiation machines eliminates high atomic number metallic components adjacent to a bottom surface of the diode substrate (away from the depletion region) to decrease a sensitivity of the diode sensor to incident angle of the radiation. | 10-01-2009 |
| 20100019163 | Radiation Detector Power Management For Portable/Handheld Applications - A radiation detector includes at least one multiple channel pixellated detector driven via a plurality of pixellated anode electrodes and at least one planar cathode electrode. Each detector is configured to reduce the number of active pixellated anode electrodes until a rate of events detected via at least one corresponding planar cathode electrode exceeds a preset threshold above a background count rate within a predetermined time period. | 01-28-2010 |
| 20100270472 | DIGITAL PULSE PROCESSING FOR MULTI-SPECTRAL PHOTON COUNTING READOUT CIRCUITS - An apparatus includes a local minimum identifier ( | 10-28-2010 |
| 20100294946 | RADIATION DETECTING DEVICE AND METHOD OF OPERATING - A method of operating a radiation-detecting device includes charging a first charge storage region of a charge storage structure to place a first charge value at the first charge storage region, and charging a second charge storage region of the charge storage structure to place a second charge value at the second charge storage region. The method further includes conducting a first read operation to determine a change in the first charge value at the first charge storage region at a first time after charging the first charge storage region, and determining a first radiation flux value for an environment containing the charge storage structure based on the change in the first charge value at the first time. | 11-25-2010 |
| 20110108735 | HIGH DYNAMIC RANGE X-RAY DETECTOR WITH IMPROVED SIGNAL TO NOISE RATIO - An x-ray detector and its pixel circuit are described, that allow to cover a large dynamic range with automatic selection of the sensitivity setting in each pixel, thus providing improved signal to noise ratio with all exposure levels. X-ray detectors are required to cover a large dynamic range. The largest exposure determines the required pixel capacitance. However, a large pixel capacitance gives a bad signal to noise ratio with small exposures e.g. in the dark parts of the image. This invention disclosure describes several approaches to provide automatic sensitivity selection in the pixels. This ensures that low signals are stored in a small capacitor or read out with a high sensitivity with corresponding good signal to noise ratio, while larger signals are stored in larger capacitors or are read out with lower sensitivity so that no information is lost. | 05-12-2011 |
| 20110163241 | APPARATUS FOR DETECTING X-RAYS AND METHOD OF OPERATING THE SAME - An apparatus for detecting X-rays and a driving method of the X-ray detecting apparatus. The driving method includes sampling a first data voltage corresponding to a rheobase voltage and a bias voltage, the rheobase voltage being generated by a current from a photodiode, sampling a second data voltage corresponding to the bias voltage after resetting the rheobase voltage, and resetting the rheobase voltage from the time that the sampling of the second data voltage is finished to the time that a corresponding frame is finished. An image delay generated when an X-ray motion picture is displayed may be minimized. | 07-07-2011 |
| 20110198508 | Method for Noise Correction for a Flat-Panel Detector - For noise correction in connection with a flat-panel x-ray detector, noise signals of a dark reference area are checked for deviations exceeding a specified threshold which, if any are present, will be taken into consideration separately for calculating the correction factor derived from the noise signal. Image artifacts due, for example, to high-contrast objects such as, for instance, cardiac pacemakers or metallic implants, in the x-ray image will be avoided through this measure. | 08-18-2011 |
| 20110204248 | RADIATION MEASURING CIRCUIT, NUCLEAR MEDICINE DIAGNOSING APPARATUS, AND METHOD OF MEASURING RADIATION - Provided between a bias power supply and a radiation detector are a noise filter and a bias voltage transmitting circuit. In a state where the bias voltage is applied, the noise filter circuit operates. In a state where the bias voltage is switched on and off, the bias voltage transmitting circuit and the noise filter circuit operate. In a state where the bias voltage is switched on and off, the bias voltage transmitting circuit operates. | 08-25-2011 |
| 20120037810 | RADIATION DETECTION - A method and apparatus for correction of detected radiation data from a semiconductor device are described. The method comprising the steps of measuring a pulse energy reading from radiation incident at the semiconductor device; filtering the signal and determining the time that the filtered signal exceeds a predetermined threshold energy; if the determined time is within predetermined parameter(s) comprising at least a predetermined maximum, storing the pulse energy reading in a first, pulse energy data register; if the determined time is above a predetermined maximum, discarding the pulse energy reading and incrementing a count in a second, discard data register; repeating the above steps to acquire a dataset of pulse energy readings of a desired size in the first data register; and on completion of such acquisition; using the discard data register to supplement the dataset of pulse energy readings by numerically correcting discarded counts and adding back into the dataset of pulse energy readings. | 02-16-2012 |
| 20120091354 | CHARGED PARTICLE DETECTORS WITH ACTIVE DETECTOR SURFACE FOR PARTIAL ENERGY DEPOSITION OF THE CHARGED PARTICLES AND RELATED METHODS - A radiation detector is disclosed. The radiation detector comprises an active detector surface configured to generate charge carriers in response to charged particles associated with incident radiation. The active detector surface is further configured with a sufficient thickness for a partial energy deposition of the charged particles to occur and permit the charged particles to pass through the active detector surface. The radiation detector further comprises a plurality of voltage leads coupled to the active detector surface. The plurality of voltage leads are configured to couple to a voltage source to generate a voltage drop across the active detector surface and to separate the charge carriers into a plurality of electrons and holes for detection. The active detector surface may comprise one or more graphene layers. Timing data between active detector surfaces may be used to determine energy of the incident radiation. Other apparatuses and methods are disclosed herein. | 04-19-2012 |
| 20120097859 | SEMICONDUCTOR STRUCTURE, PARTICUALARLY BIB DETECTOR, HAVING A DEPFET AS A SENSOR DEVICE, AND CORRESPONDING OPERATING METHOD - The invention relates to an operating method for a semiconductor structure ( | 04-26-2012 |
| 20120305786 | COMBINED INTEGRATION AND PULSE DETECTION - A pixel for the detection of electromagnetic radiation or high energy particles or charge packets, in particular for detecting X-ray photons, comprises a radiation receptor for converting the radiation into a sensing signal, the pixel being adapted for performing both pulse detection and integration of the same sensing signal. | 12-06-2012 |
| 20130001428 | RADIATION DETECTING DEVICE AND METHOD OF OPERATING - A method of operating a radiation-detecting device includes charging a first charge storage region of a charge storage structure to place a first charge value at the first charge storage region, and charging a second charge storage region of the charge storage structure to place a second charge value at the second charge storage region. The method further includes conducting a first read operation to determine a change in the first charge value at the first charge storage region at a first time after charging the first charge storage region, and determining a first radiation flux value for an environment containing the charge storage structure based on the change in the first charge value at the first time. | 01-03-2013 |
| 20130082185 | CHALCOGENIDE GLASS IONIZING RADIATION SENSOR - A chalcogenide glass radiation sensor comprising a chalcogenide glass layer coupled to at least two electrodes and a metal source, and a method using the same are disclosed. The chalcogenide glass layer has a resistivity and the at least two electrodes are configured to facilitate the measurement of the resistivity of the chalcogenide glass layer. The coupling of the metal source and the chalcogenide glass layer is such that the resistivity of the chalcogenide glass layer changes upon exposure to ionizing radiation. The metal source is configured to be external to an electric field that may form between the at least two electrodes as the resistivity of the chalcogenide glass layer is measured. | 04-04-2013 |
| 20130099127 | Method and Device for Detecting X-Ray Quanta - A method is provided for detecting x-ray quanta incident on a multi-pixel x-ray detector having a two-dimensional matrix composed of measurement-signal-generating pixels, wherein the multi-pixel x-ray detector is embodied as a direct solid-state detector, wherein the pixels, which generate a measurement signal within a predefined time interval and which in addition lie in a contiguous cluster composed of a plurality of pixels, are assigned to an event cluster by an evaluation unit and wherein their measurement signals are drawn upon for the purpose of approximating the position at which the x-ray quantum interacted with the multi-pixel x-ray detector. | 04-25-2013 |
| 20130134317 | DETECTOR AND METHOD FOR DETECTING IONIZING RADIATION - A detector and a method for the detection of ionising radiation are proposed. The detector ( | 05-30-2013 |
| 20130256547 | INCREASING DYNAMIC RANGE FOR X-RAY IMAGE SENSOR - Embodiments of the present invention provide a computer-implemented method for determining an amplification gain for an X-ray image sensor module. Specifically, among other things, embodiments of the present invention provide a computer-implemented infrastructure comprising: capturing an electrical signal by a pixel sensor; and determining an amplification gain of the electrical signal at a charge sensitive amplifier by turning a switch on or off, wherein the switch connects the pixel sensor to a capacitor. | 10-03-2013 |
| 20130334434 | Dual-SPAD-Based Single-Photon Receiver - A single-photon receiver is presented. The receiver comprises two SPADs that are monolithically integrated on the same semiconductor chip. Each SPAD is biased with a substantially identical gating signal. The output signals of the SPADs are combined such that capacitive transients present on each output signal cancel to substantially remove them from the output signal from the receiver. | 12-19-2013 |
| 20140264050 | DEVICE FOR CONVERTING CURRENT PULSES INTO VOLTAGE PULSES - An electronic device to simply and efficiently measure energy of incident photons in a very short time and with a very high count rate and high precision, starting from current pulses from an ionizing electromagnetic radiation detector, the electronic device including an analog delay line with switched capacitors with controlled loss at an output from a charge preamplifier. | 09-18-2014 |
| 20140332692 | SEMICONDUCTOR DRIFT DETECTOR AND CORRESPONDING OPERATING METHOD - The invention relates to a semiconductor drift detector for detecting radiation, comprising a semiconductor substrate (HS), in which signal charge carriers are generated during operation, to be precise by incident photons (h·f) having a specific photon energy, more particularly in the form of X-ray fluorescent radiation, and/or by incident electrons (θ), having a specific signal charge carrier current, more particularly in the form of back-scattered electrons (θ), and comprising a read-out anode (A) for generating an electrical output signal in a manner dependent on the signal charge carriers, and comprising an erase contact (RC) for erasing the signal charge carriers that have accumulated in the semiconductor substrate (HS). The invention provides for the semiconductor drift detector to be optionally operable in a first operating mode or in a second operating mode, wherein the semiconductor drift detector in the first operating mode measures the photon energy of the incident photons (h·f), whereas the semiconductor drift detector in the second operating mode measures the signal charge carrier current. Furthermore, the invention encompasses a corresponding operating method. | 11-13-2014 |
| 20150108359 | METHOD OF REAL-TIME MAPPING OF A DISTRIBUTION OF PHOTONS IN A SITE - The invention concerns a method of real-time mapping of a presence distribution of a source of photons in a site, the method comprising the steps consisting of measuring ( | 04-23-2015 |
| 20160018537 | METHOD AND APPARATUS FOR PROCESSING SIGNALS OF SEMICONDUCTOR DETECTOR - The present invention provides a method and apparatus for processing signals of a semiconductor detector, including: acquiring a relationship of a time difference between anode and cathode signals of the semiconductor detector with an anode signal amplitude; obtaining an optimal data screening interval according to the relationship of the time difference between anode and cathode signals of the semiconductor detector with the anode signal amplitude, wherein the optimal data screening interval is an interval where the time difference between the anode and cathode signals is greater than 50 ns; and screening and processing the collected data according to the optimal data screening interval when the semiconductor detector collects data. The present invention better overcomes the inherent crystal defects of the detector, reduces the effect of background noise, increases the energy resolution of the cadmium zinc telluride detector under room temperature, and improves the peak-to-compton ratio. | 01-21-2016 |
| 20160041275 | RADIATION DETECTOR AND METHOD OF OPERATING THE SAME - A radiation detector and a method of operating the radiation detector. The radiation detector includes: a photoconductive layer between the array substrate and the counter electrode and having a particle-in-binder (PIB) structure in which a photoconductive particle and a binder are mixed; and an optical unit for providing light energy to the photoconductive layer to detrap a charge trapped in an interface between the photoconductive particle and the binder. The light energy includes ultraviolet rays and/or visible rays. | 02-11-2016 |
| 20160041277 | Current Mode Design for Multiplexing Positioning Data of Detector Blocks - Disclosed herein too is an apparatus for measuring radiation, comprising an array of photodetectors for receiving the radiation; for each photodetector of the array of photodetectors, an anode buffer for generating an electronic signal indicative of receiving the radiation at the photodetector; and a mini-block corresponding to the photodetector array, the mini-block including a summation circuit for calculating an energy of the received radiation from the electronic signals corresponding to each photodetector of the array of photodetectors, and a position circuit for calculating a coordinate of the energy received at the array of photodetectors. | 02-11-2016 |
| 20160084968 | DIRECT CONVERSION RADIATION DETECTOR DIGITAL SIGNAL PROCESSING ELECTRONICS | 03-24-2016 |
| 20160091617 | PHOTON DETECTION APPARATUS AND ASSOCIATED METHODOLOGY TO ENABLE HIGH SPEED OPERATION - A photon detection apparatus that includes a photon detector configured to detect single photons. The apparatus includes: a time-to-voltage converter circuit generating a signal proportional to the time interval the photon detector exceeds a reference threshold. Thus, it is the length of time the photon detector exceeds the threshold rather than integrated signal from the photon detector that indicates whether a photon is detected. A second threshold test then discriminates detection events based on the output signal from the time-to-voltage converter. | 03-31-2016 |
| 20160116608 | X-RAY DETECTOR AND METHOD OF MANUFACTURING THE SAME AND SYSTEM INCLUDING X-RAY DETECTOR AND METHOD OF OPERATING THE SAME - An X-ray detector may include a plurality of pixels on a substrate, a first insulating layer configured to cover the plurality of pixels, an electrode block configured to penetrate the first insulating layer and be in contact with the plurality of pixels, a second insulating layer on the electrode block, and a metal wire configured to penetrate the second insulating layer and be in contact with the electrode block. Each of the plurality of pixels may include a first electrode on the substrate, a photoelectronic conversion device on the first electrode, and a second electrode on the photoelectronic conversion device. | 04-28-2016 |
| 20160139281 | Method for increasing detection sensitivity of radon monitor based on electrostatic collection method and device thereof - A method for increasing a detection sensitivity of a radon monitor based on an electrostatic collection method and a device thereof increase the detection sensitivity of the radon monitor based on the electrostatic collection method through increasing a collection efficiency of positively charged | 05-19-2016 |
| 20160377745 | DETECTION DEVICE FOR DETECTING PHOTONS AND METHOD THEREFORE - The present invention relates to a detection device ( | 12-29-2016 |
| 20180025884 | METHOD AND APPARATUS FOR AN IMAGING SYSTEM OF BIOLOGICAL MATERIAL | 01-25-2018 |
