Abstract: An imaging system is provided that includes a gantry, at least five detector units mounted to the gantry, a corresponding collimator for each of the detector units, at least one processing unit, and a controller. Each collimator has septa defining plural bores for each pixel of at least some of a plurality of pixels of the detector unit. A corresponding interior septum of the collimator is disposed above an internal portion of a corresponding pixel of the at least some of the plurality of pixels. The at least one processing unit is configured to obtain object information corresponding to the object to be imaged. The controller is configured to control an independent rotational movement of each the detector units used to acquire scanning information by detecting emissions from the object, wherein the controller rotates each of the detector units at a corresponding sweep rate.

Abstract: There is provided a radiographic imaging apparatus capable of alignment of a detector with a collimator with a position of a radiation source fixed. The radiographic imaging apparatus includes the radiation source which irradiates a subject with radioactive rays, a plurality of detecting elements which detect photons in the radioactive rays, and a collimator which is disposed between the radiation source and the detecting elements and has a plurality of walls which form a plurality of passing holes that the radioactive rays pass. The detecting element and the collimator are aligned with each other in a direction which is orthogonal to a direction that the subject is irradiated with the radioactive rays such that a ratio or a difference between output signals from the detecting elements which are mutually adjacent with the wall being interposed falls within a predetermined range.

Abstract: Provided is an operation method of an image sensor including a plurality of pixels, the operation method including transmitting a first output voltage of a first pixel to a first amplifier, transmitting the first output voltage to a second amplifier by controlling a first switch connected to the first pixel, transmitting a second output voltage of a second pixel to be binned with the first pixel to the second amplifier by controlling a second switch connected to the second pixel, and outputting selectively one of a first output of the first amplifier and a second output of the second amplifier based on an illuminance of an environment in which the image sensor operates.

Abstract: Methods and devices for detecting incident radiation, such as incident X-rays, gamma-rays, and/or alpha particle radiation are provided. The methods and devices use high purity, high quality single-crystals of inorganic semiconductor compounds, including solid solutions, having the formula AB2X5, where A represents Tl or In, B represents Sn or Pb, and X represents Br or I, as photoelectric materials.

Abstract: The invention relates to water soluble 18F-prosthetic groups and the synthesis and use of 18F-labeled biological molecules containing the 18F-prosthetic groups for imaging various processes within the body, for detecting the location of molecules associated with disease pathology, and for monitoring disease progression are disclosed.

Abstract: A hybrid radiation imaging sensor includes a low x-ray attenuating substrate, a photoconductor disposed over the substrate, and a scintillator disposed over the photoconductor. By combining direct x-ray conversion to electron-hole pairs in the photo-conductor with indirect conversion of x-rays downstream of the photoconductor within the scintillator, improved x-ray imaging can be attained through an electronic readout located upstream of both the photoconductor and the scintillator without the need for excessive x-ray dosing.

Abstract: In described examples, a charge sensitive amplifier (CSA) generates an integrated signal in response to a current signal. A high pass filter is coupled to the CSA and receives the integrated signal and an inverse of an event signal, the high pass filter generates a coarse signal. An active comparator is coupled to the high pass filter and receives the coarse signal and a primary reference voltage signal, the active comparator generates the event signal.

Abstract: An imager includes: an array of imager elements configured to generate image signals based on radiation received by the imager; and circuit configured to perform readout of image signals, wherein the circuit is configured to be radiation hard. An imager includes: an array of imager elements configured to generate image signals based on the radiation received by the imager; and readout and control circuit coupled to the array of imager elements, wherein the readout and control circuit is configured to perform signal readout in synchronization with an operation of a treatment beam source.

Abstract: Systems and methods for implementing a detector array are disclosed. According to certain embodiments, a substrate comprises a plurality of sensing elements including a first element and a second element. The detector comprises a switching element configured to connect the first element and the second element. The switching region may be controlled based on signals generated in response to the sensing elements receiving electrons with a predetermined amount of energy.

Abstract: A radiation imaging apparatus includes a pixel array, a bias line, a plurality of drive lines, and a driving unit configured to cyclically supply an ON voltage to the drive lines. The radiation imaging apparatus also includes an acquiring unit configured to acquire a plurality of signal values by acquiring a signal value representing a current flowing through the bias line at each of a plurality of times within a period in which the ON voltage is continuously supplied to at least one of the plurality of drive lines, and a processing unit configured to specify an outlier in the plurality of signal values and determine whether or not there is a radiation irradiation with respect to the pixel array based on a signal value among the plurality of signal values that is not an outlier, and without being based on the outlier.

Abstract: A radiological imaging apparatus includes a first panel where a plurality of radiation detecting elements are arrayed on a first substrate, a second panel where a plurality of radiation detecting elements are arrayed on a second substrate, and a sheet-shaped adhesion part configured to adhere a second-panel side face of the first panel and a first-panel side face of the second panel to each other, so that the first panel and the second panel are overlaid on each other in planar view as to an upper face of the first substrate. The adhesion part is configured to maintain adhesion of the first panel and the second panel, while tolerating change in relative positions thereof in a planar direction parallel to the upper face of the first substrate.

Abstract: Provided is a radiation detector including a radiation detecting unit, a gate module controlling a gate line, a readout module reading out charges stored in an exposure detection pixel determined by a data line and the gate line, and an auto exposure detecting unit determining whether the radiation detecting unit is exposed to a radiation.

Abstract: Various methods and systems are provided for an imaging detector array. In one example, a detector module of the array has a central slit separating a first tile from a second tile of the detector module. An integrated circuit is located along a first side of the first tile and along a first side of the second tile and flex cable coupled to the integrated circuit of the first portion extends through the central slit of the detector module.

Abstract: A digital radiographic image sensor includes a flexible first substrate with an image sensor array. A scintillator is formed over the array, and bonding pads in a peripheral region outside the array are connected to the array. A second substrate is attached to a bottom of the first substrate and includes a scribed or perforated break line to enable removal of a peripheral region of the second substrate.

Abstract: A boron neutron capture therapy system includes a neutron capture therapy device, a photon emission detection device and a treatment bed. The photon emission detection device includes a detecting portion surrounding the periphery of the treatment bed and detecting gamma rays generated after irradiating a boron-containing drug with neutrons; the detecting portion includes a first detecting portion and a second detecting portion moving away from or close to the first detecting portion so that the detecting portion forms a ring with the radius being increased or decreased; and the ring surrounds the treatment bed. The photon emission detection device for use in the boron neutron capture therapy system can change the radius of the ring, surrounding an irradiated object, of the detecting portion according to the actual condition in the boron neutron capture therapy so as to improve the detection precision of the photon emission detection device.

Abstract: Monolithic pixel detectors, systems and methods for the detection and imaging of electromagnetic radiation with high spectral and spatial resolution comprise a Si wafer with a CMOS processed pixel readout bonded to an absorber wafer in wafer bonds comprising conducting bonds between doped, highly conducting charge collectors in the readout and highly conducting regions in the absorber wafer and poorly conducting bonds between regions of high resistivity.

Abstract: The present disclosure discloses a pixel driving circuit, a driving method for the pixel driving circuit, a display panel and a display apparatus. The pixel driving circuit for driving a light emitting device includes: a threshold compensation subcircuit, a driving subcircuit and an optical signal detection subcircuit; the threshold compensation subcircuit is coupled to a control electrode of a driving transistor, and a first electrode of the driving transistor is coupled to the light emitting device; the optical signal detection subcircuit is coupled to the threshold compensation subcircuit; and the optical signal detection subcircuit is configured to detect an optical signal which is incident on a region where the optical signal detection subcircuit is located.

Abstract: A radiation detector having a plurality of pixels is provided. A respective one of the plurality of pixels includes a thin film transistor on a base substrate; an inter-layer dielectric layer on a side of the thin film transistor away from the base substrate; a sensing electrode and a bias electrode on a side of the inter-layer dielectric layer away from the base substrate, wherein the sensing electrode extends through the inter-layer dielectric layer to electrically connect to the thin film transistor; a passivation layer on a side of the sensing electrode and the bias electrode away from the inter-layer dielectric layer, wherein the passivation layer includes a first portion and a second portion; and a radiation detection layer on a side of the passivation layer away from the base substrate. The first portion and the second portion form a substantially flat contacting surface.

Abstract: A coded mask apparatus is provided for gamma rays. The apparatus uses nested masks, at least one of which rotates relative to the other.

Abstract: Disclosed are a thin-film transistor array substrate for a high-resolution digital X-ray detector and a high-resolution digital X-ray detector including the same, in which a photo-sensitivity is improved by increasing a fill factor, a stability of the PIN diode is improved, and generation of parasitic capacitance is reduced or minimized. In one embodiment, the PIN diode maximally extends so that electrodes and contact holes of the thin-film transistor is disposed inside the PIN diode. A planarization layer of organic material is present between the electrodes or wirings. Further, a light receiving region of the PIN diode is increased or maximized by positioning the bias line to overlap the data line or the gate line so as not to overlap with the PIN diode.

Abstract: A radiation imaging apparatus includes an internal unit having a radiation detector arranged to convert a radiation that is passed through a subject into electric signals. A base plate is arranged to support the radiation detector. A case having a rectangular parallelepiped shape is arranged to accommodate the internal unit. A fitting member is interposed between an inner wall of the case and an end portion of the internal unit, and fitted to the inner wall of the case and the end portion of the internal unit in a planar view as seen from an incident direction of the radiation.

Abstract: A method and apparatus for improvement of spatial resolution in molecular and radiological imaging is presented. System equipment includes bed with either flat or cylindrical detectors large detector arrays with collimator(s), lens(s), mirror(s) and/or shutter(s). This system utilizes magnification principles with large detector arrays. There is error reduction by reduction of non-collinearity error as seen in current PET scans by determination of the trajectory of the photons and accurate localization of the annihilation event of a positron. Additional error reduction of random coincidence and scatter coincidence is seen. Overall, this method and apparatus affords improved spatial resolution and higher efficiencies, which would allow for lower cost and dose reduction to the patient.

Abstract: Various methods and systems are provided for an imaging detector array. In one example, a detector module of the array has an X-ray sensor assembly coupled to an upper surface of a conductive block and at least one integrated circuit positioned in a recess of the conductive block below the X-ray sensor assembly. The detector module may further include a radiation blocker positioned between the X-ray sensor assembly and the at least one integrated circuit.

Abstract: An apparatus for sensing radiation is provided. Certain examples provide an apparatus including: a first layer including a sensor, wherein the sensor is configured to be responsive to changes in an electric field in the vicinity of the sensor; a second layer including a substrate configured to produce charge carriers in response to incident radiation; and a third layer including a plurality of electrodes, wherein the plurality of electrodes are configured to be selectively addressed during a readout operation of the sensor. Certain examples, relate to an apparatus for sensing X-rays or sensing neutrons including a graphene field effect transistor.

Abstract: A radiation imaging apparatus is provided. The apparatus includes a substrate in which conversion elements are arranged and which transmits light beams, a first scintillator arranged on a first surface side of the substrate, and a second scintillator arranged on a second surface side opposite to the first surface. The conversion elements include first conversion elements and second conversion elements. The first conversion elements are arranged so as to receive light beams from the first scintillator and the second scintillator. A light-shielding layer is arranged between the first scintillator and each of the second conversion elements so as to set light amounts of the second conversion elements from the first scintillator smaller than those of the first conversion elements from the first scintillator, and the second conversion elements are arranged to receive a light beam from the second scintillator.

Abstract: A workstation includes a receiver configured to receive identification information of an X-ray detector from the X-ray detector; a controller configured to set assign indicator information of the X-ray detector, based on the received identification information of the X-ray detector; an output unit configured to display the set assign indicator information of the X-ray detector; and a transmitter configured to transmit the set assign indicator information of the X-ray detector to the X-ray detector. The X-ray detector includes a transmitter configured to transmit the identification information of the X-ray detector to the workstation; a receiver configured to receive the assign indicator information from the workstation after the transmitter transmits the identification information of the X-ray detector to the workstation; and an output unit configured to display an assign indicator based on the received assign indicator information.

Abstract: The present technology relates to an imaging element and a driving method, and an electronic device that enable stable driving with low voltage and low power consumption and furthermore make it possible to ensure a time resolution of detection. A light detector includes a pixel array section including a plurality of first pixels and a second pixel. The first pixel includes a photoelectric conversion section that photoelectrically converts incident light, a floating diffusion section that generates a voltage in accordance with the amount of charge carriers obtained by photoelectric conversion, and a transfer section that transfers charge carriers from the photoelectric conversion section to the floating diffusion section; the readout of a signal is performed intermittently from the first pixel. Further, the output of the second pixel is monitored continuously to detect the incidence of light. The present technology can be applied to a radiation counter.

Abstract: The present disclosure relates to a digital X-ray detector, which includes a base substrate; a metal layer disposed on a bottom face of the base substrate; an elements-array disposed on a top face of the base substrate; a ground electrode disposed on a top face of the base substrate and electrically connected to the elements-array; a scintillator layer disposed on the elements-array; and a reflective plate disposed on the scintillator layer. Thus, a static-electricity discharge path along which static-electricity from the reflective plate moves through the ground electrode to the metal layer may be secured. This may increase or maximize an effective ground region, such that the static-electricity generated from the top and bottom of the digital X-ray detector can be more efficiently discharged out.

Abstract: Aspects of the subject disclosure may include, for example, a device comprising: a first micro-camera-element comprising a first sensor area and a first aperture element, the first aperture element having a first structural configuration, the first aperture element and the first sensor area being disposed relative to each other in order to cooperate in obtaining first imaging data having first characteristics, and the first characteristics comprising first imaging resolution and first angular coverage; a second micro-camera-element comprising a second sensor area and a second aperture element, the second aperture element having a second structural configuration, the second aperture element and the second sensor area being disposed relative to each other in order to cooperate in obtaining second imaging data having second characteristics, the second characteristics comprising second imaging resolution and second angular coverage, and the first imaging resolution differing from the second imaging resolution, th

Abstract: First and second pulse height detection circuits output pulse height detection signals which rise when a detection pulse obtained from a radiation detector becomes greater than a lower threshold Lsh or an upper threshold Hsh, and fall when the detection pulse is smaller than the lower threshold Lsh or the upper threshold Hsh. Next, first and second rising and falling detection circuits detect rising and falling edges of the pulse height detection signals from the first and second pulse height detection circuits in synchronization with a clock pulse from a crystal oscillator, and a combining circuit outputs a signal corresponding to the detection pulse that is within a range between the lower threshold Lsh and the upper threshold Hsh by combining both outputs from the first and second rising and falling detection circuits, in synchronization with the clock pulse.

Abstract: A radiation imaging system that is capable of controlling a radiation generating apparatus and a radiation detector based on communication between a first control application and a second control application is provided. The radiation imaging system comprises a holding unit configured to hold a plurality of processing requests transmitted from the second control application, a determination unit configured to determine whether the plurality of processing requests held in the holding unit are processing requests to be continuously executed, and a control right obtaining unit configured to obtain a control right to control an imaging control unit of the first control application that performs the control in order to continuously process the processing requests.

Abstract: The present disclosure relates to an apparatus and methods for generating a hybrid image by high-dynamic-range counting. In an embodiment, the apparatus includes a processing circuitry configured to acquire an image from a pixelated detector, obtain a sparsity map of the acquired image, the sparsity map indicating low-flux regions of the acquired image and high-flux regions of the acquired image, generate a low-flux image and a high-flux image based on the sparsity map, perform event analysis of the acquired image based on the low-flux image and the high-flux image, the event analysis including detecting, within the low-flux image, incident events by an event counting mode, multiply, by a normalization constant, resulting intensities of the high-flux image and the detected incident events of the low-flux image, and generate the hybrid image by merging the low-flux image and the high-flux image.

Abstract: Methods and devices that use alkali metal chalcohalides having the chemical formula A2TeX6, wherein A is Cs or Rb and X is I or Br, to convert hard radiation, such as X-rays, gamma-rays, and/or alpha-particles, into an electric signal are provided. The devices include optoelectronic and photonic devices, such as photodetectors and photodiodes. The method includes exposing the alkali metal chalcohalide material to incident radiation, wherein the material absorbs the incident radiation and electron-hole pairs are generated in the material. A detector is configured to measure a signal generated by the electron-hole pairs that are formed when the material is exposed to incident radiation.

Abstract: A pixel structure of flat panel detection device, a flat panel detection device, and a camera system. The pixel structure of the flat panel detection device includes a photodiode configured to collect optical signals and convert the optical signals into electrical signals, the photodiode includes a positive terminal and a negative terminal, the negative terminal is connected to a bias voltage signal terminal; a signal amplification circuit, a signal input terminal of the signal amplification circuit is connected to the negative terminal of the photodiode, a signal output terminal of the signal amplification circuit is connected to a first node; a first switching transistor, a control electrode of the first switching transistor is connected to a scanning signal line, a first terminal of the first switching transistor is connected to a data signal line, and a second terminal of the first switching transistor is connected to the first node.

Abstract: An image sensor includes a plurality of pixel sensing portions arranged in m columns and n rows. Each of the pixel sensing portions includes at least one thin film transistor and a photodetection diode (13) including n-type (16), intrinsic (15) and p-type (14) semiconductor layers. The p-type semiconductor layer (14) includes a multi-layered structure including lower (142) and upper (141) p-type semiconductor layered portions. The upper p-type semiconductor layered portion (141) has a band gap greater than 1.7 eV and has a p-type dopant in an amount not less than two times of that of the lower p-type semiconductor layered portion (142). An image sensing-enabled display apparatus and a method of making the image sensor are also disclosed.

Abstract: Disclosed herein is radiation detector comprising: a radiation absorption layer configured to generate electric signals by absorbing radiation particles; an electronics layer comprising an electronic system configured to process or interpret the signals; a flexible PCB configured to receive output from the electronic system; wherein the radiation absorption layer and the flexible PCB are mounted on a same side of the electronics layer.

Abstract: Pixel array includes pixels each including conversion element, and switch having control terminal, first primary terminal connected to the conversion element, and second primary terminal connected to one of signal lines. The pixel array includes pixel groups each including pixels arrayed to form at least 2 row×2 column pattern. In pixels of each pixel group, the control terminals are connected to different driving lines and the second primary terminals are commonly connected to one of the signal lines. In the pixel groups, first and second pixel groups are arranged adjacent to each other in column direction. Signal is read from the first pixel group via the first signal line of the single lines. Signal is read from the second pixel group via the second signal line of the single lines.

Abstract: A radiographic apparatus includes a radiation detection panel configured to detect radiation, and a housing that covers the radiation detection panel. The housing includes an incident surface receiving the radiation, a side surface adjacent to the incident surface, a rear surface opposing the incident surface, and an inclined surface adjacent to each of the side surface and the rear surface. A recessed handle portion is provided on the inclined surface.

Abstract: Provided is a field shaping multi-well photomultiplier and method for fabrication thereof. The photomultiplier includes a field-shaping multi-well avalanche detector, including a lower insulator, an a-Se photoconductive layer and an upper insulator. The a-Se photoconductive layer is positioned between the lower insulator and the upper insulator. A light interaction region, an avalanche region, and a collection region are provided along a length of the photomultiplier, and the light interaction region and the collection region are positioned on opposite sides of the avalanche region.

Abstract: A photo-detection device includes a quench resistor having one terminal connected to a first node, an avalanche photodiode having one terminal connected to a second node, a waveform shaping circuit having an input terminal connected to the other terminal of the quench resistor and the other terminal of the avalanche photodiode, and a switch arranged on a path between the second node and the input terminal of the waveform shaping circuit.

Abstract: Disclosed herein is an apparatus suitable for detecting X-ray. The apparatus may comprise an X-ray absorption layer, an electronics layer and a distribution layer. The X-ray absorption layer may comprise a first plurality of electric contacts and configured to generate electrical signals on the first plurality of electric contacts from X-ray incident on the X-ray absorption layer. The electronics layer may comprise a second plurality of electric contacts and an electronic system, wherein the electric system electrically connects to the second plurality of electric contacts and is configured to process or interpret the electrical signals. The first plurality of electric contacts and the second plurality of electric contacts have different spatial distributions. The distribution layer is configured to electrically connect the first plurality of electric contacts to the second plurality of electric contacts.

Abstract: A semiconductor radiation monitor (i.e., dosimeter) is provided that has an oxide charge storage region located on a first side of a semiconductor fin and a functional gate structure located on a second side of the semiconductor fin that is opposite the first side. Charges are created in the oxide charge storage region that is located on the first side of the semiconductor fin and detected on the second side of the semiconductor fin by the functional gate structure. Multiple semiconductor fins in parallel can form a dense and very sensitive semiconductor radiation monitor.

Abstract: An edge incident type light receiving element unit capable of receiving optical signals in different wavelength ranges incident from the edge side comprises a first light receiving element for receiving optical signals in a first wavelength range and a second light receiving element for receiving optical signals in a second wavelength range, and configured so that optical signals transmitted through a first light receiving portion formed vertically on a wall portion of a first semiconductor substrate incident via a reflecting portion on a second light receiving portion formed on a second semiconductor substrate fitted on the first semiconductor substrate.

Abstract: In a radiographing apparatus, a buffer material is arranged between a support base and a side wall portion to which an incidence surface (first surface) of a casing that is positioned on an incident side of radiation R, and a back surface (second surface) of the casing that is opposite to the incidence surface are bonded, the support base is provided with a first protruding portion protruding toward the back surface, the casing is provided with a second protruding portion protruding from the back surface toward the support base, and the following relationship is satisfied: distance X<distance Y, where a distance between the buffer material and the support base is a distance X, and a distance between the first protruding portion of the support base and the second protruding portion of the casing is a distance Y.

Abstract: Examples of systems and methods for monitoring metabolic activity and detectors for detecting photons are disclosed. The methods can include detection in a front and a rear detector of a photon to determine a Compton cone. This Compton cone may be combined with further Compton cone, or Line of Response calculation to determine an origin of nuclear decay. In examples of the systems and methods, substantially real-time visualization of nuclear decay can be achieved.

Abstract: An active matrix substrate includes a TFT. The TFT includes a gate electrode, a semiconductor layer overlapping the gate electrode with a gate insulating film interposed therebetween, and a source electrode and a drain electrode disposed on the semiconductor layer. The source electrode, the drain electrode, and the semiconductor layer are covered with a first insulating film. The gate insulating film includes a first stepped portion in a portion covering a peripheral portion of the gate electrode. The first insulating film includes a first opening at a position overlapping a portion of the first stepped portion that is not covered with the source electrode and the drain electrode in a plan view.

Abstract: A flexible DR detector assembly bendable along one axis and not bendable along a second axis is used with an x-ray source for radiographic imaging of a human anatomy, veterinary anatomy, or industrial equipment.

Abstract: The disclosed method enables estimating an initial point of interaction of an x-ray photon in a photon-counting x-ray detector, based on a number of x-ray detector sub-modules or wafers, each including detector elements. The x-ray detector sub-modules are oriented in edge-on geometry with the edge directed towards the x-ray source, assuming the x-rays enter through the edge. Each detector sub-module or wafer has a thickness with two opposite sides of different potentials to enable charge drift towards the side, where the detector elements, also referred to as pixels, are arranged. Basically, the method includes: determining an estimate of charge diffusion originating from a Compton interaction or an interaction through photoeffect related to the x-ray photon in a detector sub-module or wafer of the x-ray detector; and estimating the initial point of interaction along the thickness of the detector sub-module based on the determined estimate of charge diffusion.

Abstract: A radiation detector (1a), which is configured to suitably separate information of a low energy component and information of a high energy component of radiation, includes: a sensor panel (2), which includes a plurality of first photoelectric conversion element portions (23) and second photoelectric conversion element portions (24), which are arranged two-dimensionally; a first scintillator (31) arranged to overlap one surface of the sensor panel (2); a second scintillator (32) arranged to overlap a surface on a side opposite to the one surface of the sensor panel (2); and a light shielding portion (26) arranged outside an effective pixel region (22), in which the plurality of the plurality of first photoelectric conversion element portions (23) and second photoelectric conversion element portions (24) are arranged, and between the first scintillator (31) and the second scintillator (32).

Abstract: Described herein are photon counting devices comprising direct mode detectors with improved signal to noise ratios which are suitable for use in X-ray imaging devices, and other imaging devices.