Patent application number | Description | Published |
20110073765 | PORTABLE RADIOGRAPHIC IMAGE CAPTURING DEVICE - A portable radiographic image capturing device has: an image capturing unit at which is provided a radiation surface onto which radiation is irradiated at a time of capturing a radiographic image, and that captures a radiographic image expressed by radiation irradiated onto the radiation surface, and that incorporates therein a radiation detector that outputs electric signals expressing a captured radiographic image; and a control unit that is connected to the image capturing unit, and that incorporates therein a controller that controls image capturing operations of the radiation detector, and that can be changed between an expanded state in which the radiation surface is exposed to an exterior and a housed state in which the control unit covers the radiation surface. | 03-31-2011 |
20110073767 | RADIATION IMAGE CAPTURING DEVICE, AND RADIATION IMAGE CAPTURING SYSTEM - A radiation image capturing device has: a radiation image capturing section that is adapted to image capturing in a selected operation mode, an image processing section, a power supply section that supplies electric power for driving to the radiation image capturing section, a connection portion that electrically connects to at least one of a power supply device or an image processing device, and a control section. The control section effects control such that, in a case in which an operation mode that generates a predetermined generated heat amount or more is selected and the power supply device is connected to the connection portion, the power supply device is used instead of the power supply section, and, in a case in which an operation mode that generates a predetermined generated heat amount or more is selected and the image processing device is connected to the connection portion, the image processing device is used instead of the image processing section. | 03-31-2011 |
20110073768 | PORTABLE RADIOGRAPHIC IMAGE CAPTURING DEVICE - A portable radiographic image capturing device includes an image capturing unit, a control unit, and a connecting member. The image capturing unit is formed in the shape of a flat plate, captures a radiographic, and includes a radiation detector that outputs electric signals expressing a captured radiographic image, the image capturing unit being able to capture a radiographic image from either an obverse side or a reverse side of the flat plate. The control unit includes a controller that controls image capturing operations of the radiation detector. The connecting member connects the image capturing unit and the control unit such that both units can be opened and closed between an unfolded state, in which the both units are lined-up next to one another, and a housed state, in which the both units are folded-up so as to be superposed one on another. | 03-31-2011 |
20110121190 | RADIOGRAPHIC IMAGING DEVICE - A radiographic imaging device includes: a panel unit accommodating a radiation detection panel; a control unit accommodating a control section and a power source section; and a connection portion, a first end portion of the connection portion being attached to a side portion of the panel unit so as to be rotatable around a first axis that is substantially parallel to an irradiation surface of the panel unit, and a second end portion of the connection portion being attached to the control unit so as to be rotatable around a second axis that is substantially parallel to the first axis. | 05-26-2011 |
20110127440 | RADIOGRAPHIC IMAGING APPARATUS - There is provided a radiographic imaging apparatus including: a control unit configured as a flat plate shape housing a control section and a power source section; a panel unit configured as a flat plate shape housing a radiation detection panel; and a connection member that rotatably connects one edge portion of each of the control unit and the panel unit so as to adopt two states: a closed state in which one face of the control unit faces one face of the panel unit on the opposite side to an irradiation face irradiated with radiation, and an open state in which the one face of the control unit and the one face of the panel unit on the opposite side are side-by-side in a same flat plane. | 06-02-2011 |
20110158385 | RADIOGRAPHIC IMAGE CAPTURING SYSTEM - A radiographic image capturing system includes a radiographic image capturing device, a radiation irradiating device, and a control device. The radiographic image capturing device is capable of performing fluoroscopic imaging, and carries out capturing of radiographic images continuously. The radiation irradiating device performs continuous irradiation or pulse irradiation with respect to the radiographic image capturing device at a time of fluoroscopic imaging. The control device has a controller that effects control such that, in a case in which a frame rate of fluoroscopic imaging is low, the radiation irradiating device performs fluoroscopic imaging by the continuous irradiation with respect to the radiographic image capturing device. | 06-30-2011 |
20110158390 | RADIOGRAPHIC IMAGING APPARATUS - There is provided a radiographic imaging apparatus including: a control unit housing a control section and a power source section; a panel unit housing a radiation detection panel; a connection member that rotatably connects one edge portion of each of the control unit and the panel unit so as to adopt two states: a closed state in which one face of the control unit faces one face of the panel unit, and an open state in which the one face of the control unit and the one face of the panel unit are side-by-side facing in substantially the same direction, wherein in the open state the other face of the panel unit is positioned higher than the other face of the control unit; and a support member positioned below the other face of the panel unit and supporting the panel unit when in the open state. | 06-30-2011 |
20110170669 | RADIOGRAPHIC IMAGE CAPTURING SYSTEM - A radiographic image capturing system includes a radiographic image capture device, a radiation irradiation device, and a control device. The radiographic image capture device is capable of wired and wireless communications, and is capable of fluoroscopic imaging in which radiographic images are successively captured at notified synchronization timings or at a predetermined frame rate. The radiation irradiation device irradiates radiation toward the radiographic image capture device during fluoroscopic imaging, with continuous irradiation or pulse irradiation. The control device includes a wireless communication unit, a wired communication unit, and a controller that, if communication with the radiographic image capture device is performed by the wireless communication unit, prohibits fluoroscopic imaging with pulse irradiation in which the synchronization timings are notified to the radiographic image capture device and radiation is irradiated from the radiation irradiation device in pulses matching the notified synchronization timings. | 07-14-2011 |
20110215250 | RADIOGRAPHIC IMAGE CAPTURING DEVICE - A radiographic image according to an embodiment includes two radiation detectors and a light blocking layer. Each of the radiation detectors includes a light generation layer that generates light due to irradiation of radiation, and a substrate that accumulates charge by receiving light generated at the light generation layer and includes switch elements for reading the charge. The two radiation detectors are superimposed on each other. The light blocking layer is disposed between the two radiation detectors, and blocks light generated by each of the light generation layers of the two radiation detectors from the other light generation layer. | 09-08-2011 |
20110228904 | Radiographic image capturing system - A radiographic image capture system includes a radiation detector, a radiation source, a generator, and a controller. The radiation detector includes plural pixels that generate electrical charges upon irradiation with radiation and that accumulate the electrical charges. The radiation source irradiates radiation onto the radiation detector. The generator reads the respective electrical charges accumulated in each of the pixels as electrical signals and generates image data. The controller causes the generator to read the electrical charges accumulated in each of the pixels at a specific frame rate in cases where continuous fluoroscopic imaging is performed, and, in a case in which a specific condition is satisfied, causes the radiation source to reduce the radiation amount being irradiated and causes the generator to perform thinned reading to read out the pixels one section at a time while extending the reading cycle of the electrical charges for each pixel. | 09-22-2011 |
20110280369 | RADIOGRAPHIC IMAGE CAPTURE SYSTEM, PORTABLE RADIOGRAPHIC IMAGE CAPTURE DEVICE, IMAGE CAPTURE TABLE - An inflow port is provided to a casing of an electronic cassette in order to pass air from outside through the inside of electronic cassette. Air is flowed to the inflow port when the electric cassette is housed in a housing section of a prone image capture table. Efficient cooling can accordingly be achieved with a simply configured portable radiographic image capture device. | 11-17-2011 |
20120018640 | RADIATION IMAGE CAPTURING DEVICE AND RADIATION IMAGE CAPTURING METHOD - A radiation image capturing device includes: an image capturing unit that captures a radiation image using irradiated radiation; a radiation detection unit that detects the radiation; a determination unit that determines whether image capturing preparation is completed; and a control unit that starts detection of the radiation by the radiation detection unit, in a case in which the determination unit determines that the image capturing preparation is completed, and controls the image capturing unit to capture a radiation image, in a case in which the radiation detection unit detects the radiation. | 01-26-2012 |
20120018641 | RADIATION IMAGE CAPTURING DEVICE, RADIATION IMAGE CAPTURING SYSTEM, AND RADIATION IMAGE CAPTURING METHOD - A radiation image capturing system includes: a radiation image capturing device that includes an irradiation detecting/image capturing mode in which a start of irradiation of radiation is detected and a radiation image is captured; a detection unit that detects whether a radiographer has completed positioning of a subject with respect to the radiation image capturing device or has completed image capturing preparation; and a control unit that controls the radiation image capturing device to transit to the irradiation detecting/image capturing mode, in a case in which it is detected by the detection unit that the radiographer has completed the positioning of the subject or has completed the image capturing preparation. | 01-26-2012 |
20120114098 | RADIOGRAPHIC APPARATUS AND RADIOGRAPHIC SYSTEM - A radiographic apparatus includes a first grating, a second grating, a scanning unit, and a radiological image detector. The second grating includes a periodic form that has a period which substantially coincides with a pattern period of a radiological image formed a radiation having passed through the first grating. The scanning unit relatively displaces the radiological image and the second grating to a plurality of relative positions at which phase differences between the radiological image and the second grating are different each other. The radiological image detector detects the radiological image masked by the second grating. The scanning unit includes a driving unit that drives one of the first grating and the second grating relatively to the other in a pattern arrangement direction of the radiological image and a plurality of elastic members that has natural frequencies different from each other. | 05-10-2012 |
20120119097 | RADIOGRAPHIC IMAGING DEVICE AND RADIOGRAPHIC IMAGING SYSTEM - There is provided a radiographic imaging device including: an imaging panel at which sensor portions, that detect radiation or light converted from radiation, are formed at a detection region, and that captures a radiographic image expressed by radiation or light converted from radiation; a light illuminating section at which light-emitting portions, that can individually illuminate light for erasing residual images, are provided per sectional region obtained by dividing the detection region into the sectional regions; a storage section that stores imaging actual results information that expresses past actual results of imaging carried out by the imaging panel; and a control section that, in accordance with at least one of actual results of imaging and imaging conditions, controls absence/presence of illumination of, light amount of, and illumination time period of light from the respective light-emitting portions of the light illuminating section. | 05-17-2012 |
20120140882 | RADIOGRAPHIC SYSTEM - A radiographic system includes: a first grating; a second grating having a period that substantially coincides with a pattern period of a radiological image formed by radiation having passed through the first grating; a radiological image detector that detects the radiological image masked by the second grating and outputs image data of the detected radiological image, and a control unit that performs a switching between a first mode in which a plurality of imaging is performed with the second grating being positioned at relative positions having different phases with regard to the radiological image and a second mode in which the radiological image detector is driven without radiation exposure. The control unit repeatedly drives the radiological image detector in the second mode until the radiological image detector is in a steady state and shifts to the first mode after the radiological image detector is in the steady state. | 06-07-2012 |
20120140883 | RADIOGRAPHIC APPARATUS AND RADIOGRAPHIC SYSTEM - A radiographic apparatus includes: a first grating; a grating pattern having a period that substantially coincides with a pattern period of a radiological image formed by radiation having passed through the first grating; a radiological image detector that detects the radiological image masked by the grating pattern, and a third grating that is arranged at a more forward location than the first grating in a traveling direction of the radiation incident onto the first grating and selectively shields an area to which the radiation is irradiated, thereby forming disperse radiation sources. A heat insulation member is arranged at a more forward location than the third grating in the traveling direction of the radiation. | 06-07-2012 |
20120140884 | RADIOGRAPHIC APPARATUS AND RADIOGRAPHIC SYSTEM - A radiographic apparatus for obtaining a radiological phase contrast image, the radiographic apparatus includes: a radiation source, a first grating, a second grating, a scanning unit, and a radiological image detector. The radiation source includes a radiation tube, a driving power supply unit, and a radiation source control unit. The radiation irradiated from the radiation tube is controlled so that a remaining output after the feeding of the power to the radiation tube by the driving power supply unit is stopped becomes substantially zero, and the scanning unit performs a relative displacement operation after the radiation irradiated to the first grating is effectively cut off by the radiation source control unit. | 06-07-2012 |
20120140885 | RADIOLOGICAL IMAGE DETECTION APPARATUS, RADIOGRAPHIC APPARATUS AND RADIOGRAPHIC SYSTEM - A radiological image detection apparatus includes first and second gratings, a scanning unit, a radiological image detector, a shutter and a shutter driving unit. The second grating includes a period which substantially coincides with a pattern period of a radiological image formed by the radiation passing through the first grating. The scanning unit relatively displaces the radiological image and the second grating to relative positions where phase differences between the radiological image and the second grating are different from each other. The radiological image detector detects the radiological image masked by the second grating. The shutter is in a light path of the radiation toward the first grating. The shutter driving unit opens and closes the shutter. The scanning unit displaces one of the first and second gratings relatively to the other only when the shutter is closed to shield the radiation. | 06-07-2012 |
20120145912 | RADIOLOGICAL IMAGE DETECTION APPARATUS, RADIOGRAPHIC APPARATUS AND RADIOGRAPHIC SYSTEM - A radiological image detection apparatus includes a first grating, a second grating, a scanning unit, a radiological image detector, a radiation detection unit, and a control unit. The scanning unit relatively displaces at least one of the radiological image and the second grating to a plurality of relative positions at which phase differences of the radiological image and the second grating are different from each other. The radiation detection unit is provided on a path of the radiation and detects the radiation irradiated to the radiological image detector. The control unit allows the scanning unit to perform a relative displacement operation of the first grating and the second grating in a time period in which a radiation dose detection value of the radiation detected by the radiation detection unit is attenuated to a given level. | 06-14-2012 |
20120153177 | RADIOGRAPHIC APPARATUS AND RADIOGRAPHIC SYSTEM - A radiographic apparatus includes a first grating unit, a grating pattern unit, a radiological image detector. The first grating unit has a plurality of radiation shield units that shields the radiation emitted from the radiation source and a substrate on which the first radiation shield units are arranged and which enables the radiation emitted from the radiation source to penetrate therethrough. The grating pattern unit has a period that substantially coincides with a pattern period of a radiological image. The radiological image detector detects the radiological image masked by the grating pattern unit and has a plurality of pixels converting and accumulating the radiation into charges and a substrate. A thermal expansion coefficient of the substrate of the first grating unit is the substantially same as a thermal expansion coefficient of the substrate of the radiological image detector. | 06-21-2012 |
20120201351 | RADIOGRAPHIC IMAGING SYSTEM - There is provided a radiographic imaging system that has: a radiographic imaging device at which fluoroscopic imaging, that carries out capturing of radiographic images continuously, is possible; a radiation irradiating device that irradiates radiation in a pulse form with respect to the radiographic imaging device at a time of fluoroscopic imaging; and a controller that controls the radiation irradiating device such that radiation is pulse-irradiated at the radiographic imaging device with a proportion of an irradiation time period of radiation being set within a range of 12.5% to 80% with respect to each frame time period for capturing respective frame images according to a frame rate of fluoroscopic imaging, while capturing of radiographic images is carried out at the radiographic imaging device synchronously with the pulse irradiation. | 08-09-2012 |
20120205543 | RADIOLOGICAL IMAGE DETECTION APPARATUS AND METHOD OF MANUFACTURING THE SAME - A radiological image detection apparatus includes: a first scintillator and a second scintillator that emit fluorescent lights in response to irradiation of radiation; and a first photodetector and a second photodetector that detect the fluorescent lights; in which the first photodetector, the first scintillator, the second photodetector, and the second scintillator are arranged in order from a radiation incident side, and a high activator density region in which an activator density is relatively higher than an average activator density in a concerned scintillator is provided to at least one of the first scintillator located in vicinity of the first photodetector and the second scintillator located in vicinity of the second photodetector. | 08-16-2012 |
20120205544 | RADIOLOGICAL IMAGE DETECTION APPARATUS AND METHOD OF MANUFACTURING THE SAME - A radiological image detection apparatus, includes: two scintillators that convert irradiated radiation into lights; and a photodetector arranged between two scintillators, that detects the lights converted by two scintillators as an electric signal; in which: an activator density in the scintillator arranged at least on a radiation incident side out of two scintillators in vicinity of the photodetector is relatively higher than an activator density in the scintillator on an opposite side to a photodetector side. | 08-16-2012 |
20120217404 | RADIOLOGICAL IMAGE DETECTION APPARATUS AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a radiological image detection apparatus having: a scintillator that emits fluorescence upon exposure to radiation; and a photodetecting unit disposed on a radiation entrance side of the scintillator, the method includes: a photodetecting unit production process for layering on a substrate a protective member that exhibits low radiation absorbency than that exhibited by the substrate and forming a thin film portion that detects the fluorescence as an electric signal on the protective member, thereby producing the photodetecting unit; a substrate peel-removal process for peeling and eliminating the substrate from the protective member; and an integration process for integrating the previously-produced scintillator and the photodetecting unit before or after the substrate peel-removal process. | 08-30-2012 |
20120217405 | RADIOLOGICAL IMAGE DETECTION APPARATUS AND METHOD OF MANUFACTURING THE SAME - A radiological image detection apparatus includes: a phosphor which contains fluorescent material emitting fluorescence in response to radiation exposure; a sensor portion of thin-film type that is provided adjacent to a radiation entering side of the phosphor and supported by the phosphor and that detects fluorescence emitted by the phosphor; and a moisture preventing portion that covers at least a part of a rear face opposite to a phosphor side of the sensor portion so as to suppress entering of moisture into the sensor portion. | 08-30-2012 |
20120217407 | RADIOLOGICAL IMAGE DETECTION APPARATUS AND METHOD OF MANUFACTURING THE SAME - A method of manufacturing a radiological image detection apparatus includes: bonding a phosphor to a sensor panel constructed such that a plurality of photoelectric conversion elements are arranged on a substrate; connecting a wiring member to a connection portion that is provided on a front face of the sensor panel opposite to the phosphor and that is electrically connected to the photoelectric conversion elements; covering with a first protective film the connection portion connected to the wiring member; peeling off the substrate from the sensor panel in which the first protective film is formed; and covering, with a second protective film having a moisture prevention property, at least a part corresponding to the connection portion in a rear face of a sensor portion exposed when the substrate is peeled off from the sensor panel. | 08-30-2012 |
20120219114 | RADIOLOGICAL IMAGE DETECTION APPARATUS AND RADIOGRAPHIC IMAGING CASSETTE - A radiological image detection apparatus includes: a radiological image detection apparatus main body including a scintillator that converts into fluorescence radiation emitted by way of a subject and a photodetecting unit provided on a radiation entrance side of the scintillator; and a support disposed on a radiation entrance side of the radiological image detection apparatus main body to support the subject, in which the photodetecting unit includes a thin film portion that detects the fluorescence as an electric signal and a reinforcing member that is provided on another side of the thin film portion with respect to its side facing the scintillator; and the reinforcing member and the support are bonded together and remain in close contact with each other along a joint plane therebetween. | 08-30-2012 |
20120228485 | MAINTENANCE METHOD OF RADIOLOGICAL IMAGE DETECTION APPARATUS - An maintenance method of a radiological image detection apparatus including: a phosphor containing a fluorescent material which emits fluorescent light when exposed to radiation and a thin-film type sensor portion which is disposed adjacent to the phosphor on a radiation incidence side and supported by the phosphor and detects fluorescent light generated in the phosphor, the maintenance method includes: regularly performing at least one of a structural noise inspection, an MTF inspection and a dark current inspection, to detect deterioration of the phosphor. | 09-13-2012 |
20120267535 | RADIATION IMAGING DEVICE, SYSTEM, AND METHOD - A radiation detector includes a sensor panel, a scintillator panel, a reflective layer, and a radiation irradiation detecting photodetector laminated in this order from a side of a radiation receiving surface. Radiation transmitted through a patient's body enters the scintillator panel through the sensor panel, and is converted into light. The converted light propagates through columnar crystals in the scintillator panel with total internal reflection. Apart of the light reaches the sensor panel, while the remains reach the reflective layer. The light reaching the sensor panel is detected by photoelectric converters. Out of the light reaching the reflective layer, a short wavelength component with a relatively high refractive index is specularly reflected to the sensor panel. A long wavelength component with a relatively low refractive index is transmitted through the reflective layer, and enters the radiation irradiation detecting photodetector, which detects a start of radiation irradiation. | 10-25-2012 |
20120312997 | RADIATION IMAGE DETECTING DEVICE - A substrate is made of copper having an atomic number of 29. The substrate is formed in the shape of a box without a top, and has a rectangular bottom and sidewalls erected at four sides surrounding the bottom. A scintillator is evaporated onto the bottom. The scintillator includes a non-columnar crystal and a plurality of columnar crystals erected by crystal growth. A photodetector tightly adheres to top surfaces of the sidewalls of the substrate through an O-ring, so as to close the top of the box-shaped substrate. The substrate, the photodetector, and the O-ring seal the scintillator in an air-tight manner. | 12-13-2012 |
20130075609 | PORTABLE RADIOGRAPHIC IMAGING DEVICE AND RADIOGRAPHIC IMAGING SYSTEM - A portable radiographic imaging device including: a radiation detection panel including optoelectric conversion elements that convert irradiated radiation into an electrical signal; a signal processing substrate performing predetermined signal processing on the input electrical signal; a holding base provided between the radiation detection panel and the signal processing substrate and holding the signal processing substrate; a flexible substrate including a flexed portion, with one end of the flexible substrate being connected to the radiation detection panel and the other end of the flexible substrate being connected to the signal processing substrate; a casing in which the radiation detection panel, the signal processing substrate, the holding base and the flexible substrate are installed; and a contact avoidance portion formed at at least one of the signal processing substrate, the holding base or the casing such that contact of with the flexible substrate is avoided, is provided. | 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 |
20130121471 | RADIATION IMAGE DETECTION APPARATUS AND RADIATION IMAGE PHOTOGRAPHING SYSTEM - A radiation image detection apparatus, includes: a control unit configured to drive an imaging unit so that a radiation image data is acquired, an image receiving unit is reset after acquiring the radiation image data, and a dark image data is acquired; in which: the control unit changes at least one of a reset time of the image receiving unit and a reduction ratio of an reduced image data on the basis of the communication speed by such that the transmission of the reduced image data is completed at least prior to reading-out an electrical charge signal from the image receiving unit when acquiring the dark image. | 05-16-2013 |
20130129053 | RADIATION IMAGE DETECTION APPARATUS AND RADIATION IMAGE PHOTOGRAPHING SYSTEM - A radiation image detection apparatus includes a control unit, during a irradiation detection mode, stops supplying of an operating power to a data processing unit until irradiation of radiation is detected by an irradiation detection unit, and when the irradiation of radiation is detected by the irradiation detection unit, the control unit proceeds to a photographing mode and begins supplying the operating power to the data processing unit. | 05-23-2013 |
20140219422 | RADIOGRAPHIC IMAGING APPARATUS, RADIOGRAPHIC IMAGING SYSTEM, AND RADIOGRAPHIC IMAGING METHOD - There are provided the following components: an FPD that has a plurality of pixels, in which signal electric charges corresponding to amounts of X-rays incident are accumulated, and that is capable of nondestructively reading data which indicates the X-ray image; an amplifier that amplifies a signal sent from the FPD and has a variable gain; an evaluation value calculation section that obtains an evaluation value for evaluating the X-ray image; and a gain adjustment section that calculates a new gain of the amplifier used at the time of rereading. The gain of the amplifier is changed to a value of a new gain which is calculated by the gain adjustment section, and the X-ray image is reread. | 08-07-2014 |
20140232841 | RADIATION VIDEO PROCESSING DEVICE, RADIATION VIDEO CAPTURING DEVICE, RADIATION VIDEO CAPTURING SYSTEM, RADIATION VIDEO PROCESSING METHOD AND PROGRAM STORAGE MEDIUM - A radiographic video processing device includes: an acquisition section that acquires gradation signals expressing charges; and a control section that, if capture of a video image formed from plural frames is being performed with a radiation detector, and a number of the pixels, from which charges are combined and read by switching elements included in adjacent pixels of the radiation detector, has been increased, effects control such that, from a frame at a time of the increase up until a predetermined frame, the gradation signals distributed in a higher density range than that for frames subsequent to the predetermined frame are used as image data. | 08-21-2014 |
20140233701 | RADIOGRAPHIC IMAGING CONTROL DEVICE, RADIOGRAPHIC IMAGING SYSTEM, RADIOGRAPHIC IMAGING DEVICE CONTROL METHOD, AND RECORDING MEDIUM - A radiographic imaging control device is provided with a radiation detector, amplifiers and a controller. A plurality of pixels are arrayed in the radiation detector, each pixel including a sensor portion that generates charges in accordance with irradiated radiation and a switching element that is for reading out the charges generated at the sensor portion. Each amplifier is provided in correspondence with a respective pixel of the radiation detector, is equipped with a resetter that resets charges remaining at an integration capacitor, and amplifies an electronic signal according to the charges read out by the switching element from the corresponding pixel by a pre-specified amplification factor. In accordance with pre-specified conditions, the controller controls so as to alter a bias current supplied to the amplifiers in at least some periods of resetting by the resetter. | 08-21-2014 |
20140241502 | RADIOLOGICAL IMAGE-CAPTURING DEVICE, RADIOLOGICAL IMAGE-CAPTURING SYSTEM, RADIOLOGICAL IMAGE-CAPTURING METHOD, AND PROGRAM - A radiological image-capturing device includes: a first read control section that executes a first read mode in which electric signals stored in a plurality of pixels are read out simultaneously in units of a plurality of rows; and an emission-start determining section that determines that the emission of radiation from a radiation source onto an image-capturing panel has started when the values of the electric signals read by the first read control section have become greater than an arbitrarily settable threshold. If it is determined by the emission-start determining section that the emission of the radiation has started, the first read control section terminates the reading of the electric signals, and thereby brings the image-capturing panel into an exposure state. | 08-28-2014 |
20140374610 | RADIOGRAPHIC IMAGING DEVICE, RADIOGRAPHIC IMAGING SYSTEM, CONTROL METHOD, AND NON-TRANSITORY COMPUTER READABLE MEDIUM - The present invention may suppress feedthrough components in video imaging, Namely, TFT driving waveforms are plurally overlapped, and an integration period of capacitors C of amplification circuits is set so as to encompass a generation period of a feedthrough component (OFF), a generation period of a feedthrough component (ON), and a period in which charges (a signal component) are read out from storage capacitors of pixels by ON states of the TFTs. A number of driving waveforms to be overlapped is determined in accordance with a frame rate, the integration period and a reset period, or the like. | 12-25-2014 |
20150049858 | 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 or 4-pixel binning process. A radiation detector is disposed with plural pixels that have hexagonal shaped pixel regions, arrayed in a honeycomb pattern. Scan lines connected to TFT switches in each of the pixels are disposed one for each of the pixel rows. Grouped scan lines are also disposed one for each of the pixel rows for reading and combining 3 pixels or 4 pixels worth of charges at the same timing for plural pixel groups, each configured from 3 pixels or 4 pixels in a radiation detection element. ON signals are simultaneously sent by the grouped scanned lines to the TFT switches to perform 3-pixel binning or 4-pixel binning. | 02-19-2015 |
20150085980 | RADIOLOGICAL IMAGE-CAPTURING DEVICE, RADIOLOGICAL IMAGE-CAPTURING SYSTEM, RADIOLOGICAL IMAGE-CAPTURING METHOD, AND PROGRAM - A radiological image-capturing device includes: a first read control section that executes a first read mode in which electric signals stored in a plurality of pixels are read out simultaneously in units of a plurality of rows; and an emission-start determining section that determines that the emission of radiation from a radiation source onto an image-capturing panel has started when the values of the electric signals read by the first read control section have become greater than an arbitrarily settable threshold. If it is determined by the emission-start determining section that the emission of the radiation has started, the first read control section terminates the reading of the electric signals, and thereby brings the image-capturing panel into an exposure state. | 03-26-2015 |