A radiation imaging apparatus includes an attenuation member on the back surface side opposite the radiation incident surface of a radiation detection unit. The attenuation member is configured to reduce unexpected appearance of a part disposed on the back surface side of the radiation imaging apparatus, the unexpected appearance of which occurs due to backscattered radiation reflected by the structured part on the back surface side of the radiation imaging apparatus. The attenuation member includes a material having a radiation transmittance higher than that of the part and covers the end portion of the outline of the part that overlaps the radiation detection unit in orthogonal projection onto the surface opposite the incident surface of the radiation detection unit, and the area of the attenuation member is smaller than that of the radiation detection unit.

A detector assembly for a CT system includes a first support structure having a first plurality of mini-module support surfaces, each of the first plurality of mini-module support surfaces being tangent to a hypothetical sphere that is formed having a center of the hypothetical sphere positioned at a focal spot of the CT system, the first plurality of mini-module support surfaces at a first distance from the center of the hypothetical sphere, and a second support structure positioned next to the first support structure and having a second plurality of mini-module surfaces, the second support structure being angled in an X-Y plane with respect to the first support structure such that the second plurality of mini-module surfaces are tangent to the hypothetical sphere and at the first distance from the center of the hypothetical sphere.

A computer-tomography (CT) imaging system, comprising an imaging data acquisition system. The imaging data acquisition system includes a plurality of sets of a detector section, a storage section, and an aggregation section. The detector section includes a plurality of detector elements each being configured to convert radiation into electric signals. The aggregation section is configured to aggregate imaging data carried by the electronic signals from the detector section. The storage section is connected with an output of the detector section and an input of the aggregation section. The storage section comprises a predetermined number of non-volatile memories to store the imaging data from the corresponding detector elements.

The present disclosure relates to methods and systems for calibrating an X-ray apparatus. The X-ray apparatus may include an X-ray detector and a collimator. To calibrate the X-ray apparatus, the methods and systems may include moving the X-ray detector from a first position to a second position along a first axis of a coordinate system, wherein the first position is under a scanning table, and the second position is outside the scanning table; moving the collimator to align the collimator with the X-ray detector at the second position; determining one or more parameters; and determining a second value of the first encoder when the collimator is aligned with the X-ray detector at the first position based on the one or more parameters.

A detector sub-assembly for a CT system includes a detector module that includes a mount block having a top planar surface, a Y-axis planar surface that is parallel with the top planar surface, an X-axis planar surface that is orthogonal to the first Y-axis planar surface, and an aperture passing through the X-axis planar surface. The module includes a substrate having a pixelated photodiode positioned thereon, and a two-dimensional anti-scatter grid (ASG) positioned on the pixelated photodiode. The detector sub-assembly includes a support structure including a Y-axis mount surface and an X-axis mount surface, and a second aperture passing through the X-axis mount surface, a mounting screw having an outer diameter that is smaller than an inner diameter of the aperture and passing through the aperture and into the second aperture when the Y-axis planar surface is on the Y-axis mount surface.

Disclosed herein is a system comprising: a radiation source configured to cause emission of characteristic X-rays of a chemical element in human breast tissues by generating and directing radiation to the human breast tissues; a first image sensor configured to capture a first set of images of the human breast tissues using the characteristic X-rays; a second image sensor configured to capture a second set of images of the human breast tissues using the radiation that has transmitted through the human breast tissues; and a clamp configured to compress the human breast tissues against the second image sensor; wherein the first image sensor is between the clamp and the second image sensor.

A radiation detector module of an embodiment includes a radiation detector, a first electrode, a second electrode, and a mark. The radiation detector includes an incident surface and is configured to detect radiation incident from the incident surface. The first electrode is provided on the side of the incident surface of the radiation detector. The second electrode is provided to face the first electrode through the radiation detector. The mark is provided on at least one of the incident surface of the radiation detector and the first electrode.

A radiation imaging apparatus includes a plurality of antennas that performs at least one of reception of control data for an image capturing unit to capture radiation image data from a data processing apparatus and transmission of the radiation image data to the data processing apparatus via wireless communication, a selection unit that selects an antenna to be used from the plurality of antennas, and a control unit that controls the selection unit. The control unit restricts a selection by the selection unit such that the selection is not performed during a period when the image capturing unit captures the radiation image data.

A radiological imaging device that includes a source that emits radiation that passes through at least part of a patient, the radiation defining a central axis of propagation; and a receiving device that receives the radiation and is arranged on the opposite side of the patient with respect to the source. The receiving device includes a first detector to detect radiation when performing at least one of tomography and fluoroscopy, a second detector to detect radiation when performing at least one of radiography and tomography; and a movement apparatus arranged to displace the first and second detectors with respect to the source. The movement apparatus provides a first active configuration in which the radiation hits the first detector and a second active configuration in which the radiation hits the second detector.

A data processing device is applied to an X-ray system which irradiates an object with continuous X-rays and processes data detected by a photon counting X-ray detection device. An n-dimensional vector corresponding to each of “n” energy regions set a spectrum of the continuous X-rays is calculated for each detector pixel based on the data. For each search region virtually set up based on one or more detector pixels, the n-dimensional vectors at the detector pixels belonging to each search pixel are mutually vector added in the n-dimensional space. The n-dimensional representative vector representing each of the plurality of search regions is calculated. Based on the representative vectors and an unit region having a desired size virtually set in a material space with coordinate information of the degree of attenuation of the X-rays, the information indicating the amount, type and properties of the material of the object is obtained.