The present specification provides a detector for an X-ray imaging system. The detector includes at least one high resolution layer having high resolution wavelength-shifting optical fibers, each fiber occupying a distinct region of the detector, at least one low resolution layer with low resolution regions, and a single segmented multi-channel photo-multiplier tube for coupling signals obtained from the high resolution fibers and the low resolution regions.

Gamma ray detection system comprising a detection module assembly including at least two detection modules configured for positron emission tomography (PET) scanning of a target zone, each detection module comprising a plurality of stacked scintillator plates each having a major surface oriented to generally face the target zone and lateral minor surfaces defining edges of the scintillator plates, a plurality of photon sensors being mounted against said edges layer photon sensor 18a configured to detect a scintillation event in the scintillator plate from a gamma ray incident on the major surface. The gamma ray detection system is further configured to function as a Compton camera, at least one scintillator plate that is not the scintillator plate closest to the target zone being configured as an absorber scintillator plate for said Compton camera.

Provided is a radiation image detector, including: a substrate; an optical image detector located on the substrate; and a radiation conversion layer located above the optical image detector to convert radiation into visible light. The optical image detector includes a photosensitive pixel array formed by a plurality of photosensitive pixels arranged periodically; each photosensitive pixel includes a photoelectric conversion layer which is capable of converting the visible light into electric charges. The photoelectric conversion layer includes an active region and an inactive region. The active region occupies less than 70% of the area of the photoelectric conversion layer. Each photosensitive pixel further includes a light-guide layer located between the radiation conversion layer and the photoelectric conversion layer and configured to guide the visible light to the active region.

An X-ray device including a sensing panel is provided. The sensing panel includes a first pixel and a second pixel. The second pixel is disposed adjacent to the first pixel in a top view direction. The first pixel includes a first photoelectric conversion layer. The second pixel includes a second photoelectric conversion layer. The first photoelectric conversion layer and the second photoelectric conversion layer belong to different layers.

A radiation detector includes a photoelectric conversion element array, a scintillator layer converting radiation into light, a resin frame formed on the photoelectric conversion element array, and a protective film covering the scintillator layer. The resin frame has a groove continuous with an outer edge of the protective film. The groove includes a pre-irradiation portion formed by performing scanning along the resin frame while increasing the energy of a laser beam, a main irradiation portion formed by performing scanning along the resin frame while maintaining the energy of the laser beam, and a post-irradiation portion formed by performing scanning along the resin frame while decreasing the energy of the laser beam.

The present specification provides a detector for an X-ray imaging system. The detector includes at least one high resolution layer having high resolution wavelength-shifting optical fibers, each fiber occupying a distinct region of the detector, at least one low resolution layer with low resolution regions, and a single segmented multi-channel photo-multiplier tube for coupling signals obtained from the high resolution fibers and the low resolution regions.

In one example, there is provided a matrix of detectors configured to be used in a system for inspecting cargo using inspection radiation. The matrix includes a plurality of columns of detector modules, the detector modules of each column extending along a substantially longitudinal direction, each detector module including a surface configured to receive the inspection radiation, and the plurality of columns of detector modules being adjacent to each other in a lateral direction substantially perpendicular to the longitudinal direction and substantially parallel to the surfaces of the detector modules, wherein the plurality of columns of detector modules includes at least two columns of detector modules being offset with respect to each other in an in-depth direction substantially perpendicular to both the lateral direction and the longitudinal direction.

Detector modules, detectors and medical imaging devices are provided. One of the detector modules includes: a support and a plurality of detector sub-modules arranged on the support along an extension direction in which the support extends. Each of the detector sub-modules has a first area and a second area in the extension direction. A detecting device is disposed in the first area, and a functional module is disposed in the second area. The functional module is electrically connected to the detecting device for receiving an electrical signal from the detecting device. The plurality of detector sub-modules includes a first detector sub-module and a second detector sub-module that are arranged adjacent to each other in the extension direction, and the first area of the first detector sub-module at least partially overlaps with the second area of the second detector sub-module.

A radiation imaging apparatus comprising a first scintillator, a second scintillator which receives radiation transmitted through the first scintillator, conversion elements and a controller is provided. The conversion elements include first conversion elements and second conversion elements with different sensitivities for detecting light emitted from at least one of the first scintillator or the second scintillator. During radiation irradiation, the controller obtains, from a signal output from one or more measuring element configured to measure a dose of incident radiation, a first signal corresponding to light converted from radiation by the second scintillator, and outputs, based on the first signal, a stop signal configured to stop the radiation irradiation, and after the radiation irradiation, the controller causes the first conversion elements and the second conversion elements to output signals configured to generate an energy subtraction image.

A data processing apparatus according to an embodiment includes acquisition circuitry and specification circuitry. The acquisition circuitry is configured to acquire a detector signal containing a first component that is based on Cherenkov light and a second component that is based on scintillation light. The specification circuitry is configured to specify timing information about generation of the detector signal by curve fitting to the first component.