A solid-state imaging device comprises a photodetecting section, an unnecessary carrier capture section, and a vertical shift register. The unnecessary carrier capture section has carrier capture regions arranged in a region between the photodetecting section and the vertical shift register for respective rows. Each of the carrier capture regions includes a transistor and a photodiode. The transistor has one terminal connected to the photodiode and the other terminal connected to a charge elimination line. The charge elimination line is short-circuited to a reference potential line.

A radiation imaging apparatus having a function of detecting a start and an end of emission of radiation and an amount of emission of radiation includes a plurality of pixels configured to generate signals according to a dose of radiation, signal lines connected to the plurality of pixels, a reading circuit configured to read the signals from the pixels via the signal lines and generate values according to the signals, and a control unit configured to control an operation of the reading circuit. A row including a pixel from which a signal has been read during the emission of radiation is not read when a diagnosis image is generated.

An imaging method includes the steps of: (a) causing a beam to travel from an emitter through an examination area for receipt at a detector; and (b) within the detector, (i) transforming the beam that is received into light, (ii) transforming the light into electrical signals representative of digital images corresponding to the examination area, including using a collector within the detector to collect the light as it passes to photosensitive areas of the collector without first passing through any wiring layer of the collector, and (iii) transmitting from the detector the data representative of digital images for display of the digital images to a user on a computing device. The detector includes a plurality of wiring layers having stacked substrates attached together. Furthermore, each substrate includes one or more processing circuits, by which the detector is configured for fast readout speed and dual native ISO.

An imaging method includes the steps of: (a) causing a beam to travel from an emitter through an examination area for receipt at a detector; and (b) within the detector, (i) transforming the beam that is received into light, (ii) transforming the light into electrical signals representative of digital images corresponding to the examination area, including using a collector within the detector to collect the light as it passes to photosensitive areas of the collector without first passing through any wiring layer of the collector, and (iii) transmitting from the detector the data representative of digital images for display of the digital images to a user on a computing device. The detector includes a plurality of wiring layers having stacked substrates attached together. Furthermore, each substrate includes one or more processing circuits, by which the detector is configured for fast readout speed and dual native ISO.

A radiation image detection apparatus, including an image receiving unit having a two-dimensional array of a plurality of pixels that generate electrical charges when being subjected to irradiation of radiation, the plurality of pixels including a plurality of pixels for detecting an image and one or more pixels for detecting irradiation; an image data generation unit configured to generate image data based on an electrical signal output from the respective pixels for detecting the image, an irradiation detection unit configured to detect the irradiation of radiation based on the electrical signal output from the respective pixels for detecting irradiation, a communication unit that transmits the image data generated in the image data generation unit, and a control unit configured to include a plurality of control modes including a photographing mode generating the image data, an irradiation detection mode detecting the irradiation of radiation and a standby mode.

An image sensor driving apparatus extracts an image signal from an image sensor including a plurality of photoelectric conversion elements two-dimensionally arrayed, and includes a conversion unit which converts the image signal into digital data by performing offset correction for the image signal. The apparatus obtains digital data corresponding to a first sampling count by causing the conversion unit to process a reference voltage signal in accordance with a synchronization signal which determines an imaging frame rate, and obtains digital data corresponding to a second sampling count by causing the conversion unit to process a reference voltage signal every time extracting an image signal from a photoelectric conversion element group obtained by dividing a plurality of photoelectric conversion elements. The apparatus generates a correction value used for offset correction based on the obtained digital data corresponding to the first and second sampling counts.

A pixel circuit includes a voltage compensation circuit connected to a body terminal of the pixel's switching TFT to compensate for a decreasing threshold voltage drift of the TFT.

The present approach relates to implementations of a CT detector integrating CT scintillator packs on a fast, low electronic noise and scalable CMOS active pixel sensor substrate. In one embodiment, a large 3-side buttable CMOS active pixel array with built-in column analog-to-digital conversion (ADC) circuitry (e.g., ASICs) integrated onto the same wafer is used.

A radiation detector (100) with a scintillator (102), a photosensor (104) and an electronics module (108) is proposed. The electronics module (108) has a current-to-frequency converter (110) with a charge integrator (112) for generating a pulsed signal in having a frequency correlating with a charge generated by the photosensor (104) during a measurement cycle. The electronics module (108) further comprises a current source (120) for generating a frequency offset of the pulsed signal, an interrupting device (134) for interrupting an integration of the charge by the charge integrator (112), and a logic module (124) for determining the frequency of the pulsed signal. Therein, the logic module (124) is configured for determining an off-state of a radiation (404) source and for triggering the interrupting device (134) upon determining the off-state of the radiation source (404).

A radiation detector (100) with a scintillator (102), a photosensor (104) and an electronics module (108) is proposed. The electronics module (108) has a current-to-frequency converter (110) with a charge integrator (112) for generating a pulsed signal in having a frequency correlating with a charge generated by the photosensor (104) during a measurement cycle. The electronics module (108) further comprises a current source (120) for generating a frequency offset of the pulsed signal, an interrupting device (134) for interrupting an integration of the charge by the charge integrator (112), and a logic module (124) for determining the frequency of the pulsed signal. Therein, the logic module (124) is configured for determining an off-state of a radiation (404) source and for triggering the interrupting device (134) upon determining the off-state of the radiation source (404).