A method of manufacturing a radiographic imaging apparatus includes providing a flexible base material on a support body and forming a sensor substrate in which a plurality of pixels for accumulating electric charges generated depending on light converted from radiation is provided; forming a conversion layer that converts the radiation into light on a fixing plate; providing the conversion layer in a state in which a surface of the conversion layer opposite to the fixing plate is made to face a first surface of the base material provided with the pixels; fixing one end of the flexible cable to the sensor substrate; fixing the flexible cable to the fixing plate; and peeling the sensor substrate provided with the conversion layer and the fixing plate from the support body.

A radiation imaging apparatus comprising: a scintillator; a plurality of pixels configured to respectively detect light converted by the scintillator from radiation; and a corrector configured to perform a correction process on signal data based on signals output from the plurality of pixels is provided. The corrector is configured to perform a first correction process for acquiring a gain map for gain correction without placing an object, and a second correction process including gain correction using the gain map. Correction processes performed on dotted noise that occur at random both temporally and spatially are different for the first correction process and the second correction process.

A radiation counting device is provided that includes a scintillator, a pixel circuit, and an analog-to-digital conversion circuit. In the radiation counting device, the scintillator generates a photon when radiation is incident. In the radiation counting device, the pixel circuit converts the photon into charge, stores the charge over a predetermined period, and generates an analog voltage in accordance with the amount of stored charge. In the radiation counting device, the analog-to-digital conversion circuit converts the analog voltage into a digital signal in a predetermined quantization unit less than the analog voltage generated from the one photon.

A radiation detector can include a scintillator having opposing end surfaces and a plurality of discrete photosensors disposed on an end surface of the scintillator. In an embodiment, the photosensors are disposed at the corners or along the peripheral edge of the end surface, as opposed to being disposed at the center of the end surface. In an embodiment, the plurality of discrete photosensors may cover at most 80% of a surface area of the end surface of the scintillator and may not cover a center of the end surface of the scintillator. In a further embodiment, an aspect ratio of the monolithic scintillator can be selected to improve energy resolution.

A photodetector includes: a photoreceptor provided with a SPAD that is configured to respond to incidence of a photon, and as the response of the SPAD, configured to output a pulse signal; and a pulse rate control circuit configured to control sensitivity of the photoreceptor to have a pulse rate as the number of pulse signals outputted per unit time from the photoreceptor to be a set value set in advance, (i) in a set range including the set value, (ii) in a set range of the set value or more, or (iii) in a set range of the set value or less.

Disclosed herein is a radiation detector comprising: a layer of quantum dots configured to emit a pulse of visible light upon absorbing a radiation particle; an electronic system configured to detect the radiation particle by detecting the pulse of visible light.

The present disclosure relates to a detector apparatus. The detector apparatus may include a detecting module, an electronics module and a cooling assembly. The detecting module may be configured to detect radiation rays emitted from a subject and generate electrical signals in response to detection of radiation rays. The electronics module may be configured to process the electrical signals generated by the detecting module. The cooling assembly may be configured to cool the detecting module and the electronics module. The cooling assembly may include a first layer and a second layer. The first layer may be thermally connected with the detecting module, and the second layer may be thermally connected with the electronics module.

A radiation image capturing apparatus including a sensor substrate including a flexible base material and a plurality of pixels accumulating electric charges generated in accordance with radiation, a flexible first cable of which one end is electrically connected to the sensor substrate, and a flexible first circuit substrate that is electrically connected to the other end of the first cable and in which a first circuit unit driven in a case of reading out the electric charges accumulated in the plurality of pixels is mounted is provided.

A digital detector includes a conversion block intended to convert incident radiation into electric charge; an electronic card that converts the electric charge into a digital image, the conversion block comprising N conversion stages superposed on one another, N being an integer between 2 and M, each of the N conversion stages comprising: a monolithic substrate; a first converter assembly in the form of a polygonal matrix array, M being the number of sides of the polygonal matrix array, M preferably being equal to 4, and configured so as to generate the electric charge on the basis of the incident radiation; an addressing and driving module for addressing and driving the matrix array, the addressing and driving module being arranged on the monolithic substrate along one side of the polygonal matrix array; each of the N conversion stages being oriented by at least 1/M of a turn with respect to the other N−1 conversion stages of the conversion block, and with an orientation distinct from the other N−1 conversion stages of the conversion block.

The present disclosure relates to fabrication and use of a phase-contrast imaging detector that includes sub-pixel resolution electrodes or photodiodes spaced to correspond to a phase-contrast interference pattern. A system using such a detector may employ fewer gratings than are typically used in a phase-contrast imaging system, with certain functionality typically provided by a detector-side analyzer grating being performed by sub-pixel resolution structures (e.g., electrodes or photodiodes) of the detector. Measurements acquired using the detector may be used to determine offset, amplitude, and phase of a phase-contrast interference pattern without multiple acquisitions at different phase steps.