A positron emission tomography (PET) scanner may include a plurality of gamma radiation detector modules arranged to form a detector ring. Each detector module may include an array of elongated scintillation crystals. With respect to the detector ring, each elongated scintillation crystal includes a proximal end-face, two axially oriented lateral faces, two transaxially oriented lateral faces, and a distal end-face radially oriented into the detector ring to receive a gamma photon. An array of photosensors is positioned along a first of the axially oriented lateral faces of each elongated scintillation crystal to detect scintillation photons. A reflective material is positioned on the proximal end-face, the distal end-face, the transaxially oriented lateral faces, and a second of the axially oriented lateral faces of each elongated scintillation crystal to internally reflect scintillation photons. In various embodiments, a dual-channel processing circuit provides distinct timing and energy signals from the photosensors.

An X-ray detector is disclosed, in particular for a computed tomography system. In an embodiment, the X-ray detector includes a regular arrangement of measuring pixels for covering a measuring surface. A plurality of the measuring pixels of the regular arrangement are constructed as direct converting measuring pixels, and remaining ones of the measuring pixels are constructed as indirect converting measuring pixels.

Disclosed are a detection collimation unit, a detection apparatus and a SPECT imaging system. The detection collimation unit includes: a scintillation crystal array configured to receive a gamma photon emitted by a radioactive source in a detected object; and a number of photoelectric devices configured to receive the gamma photon and converting the gamma photon into a digital signal. The scintillation crystal array includes a number of scintillation crystals. The number of scintillation crystals are arranged substantially in parallel and are spaced from each other. Each scintillation crystal has a side face configured to receive a ray emitted by the radioactive source and an end face. The number of photoelectric devices are coupled to the end faces of the number of scintillation crystals.

An X-ray device includes an X-ray source, a scintillator, a single mirror, and a camera. The camera has a field-of-view around an optical axis of the camera. The single mirror fully contains the field-of-view as the field-of-view is folded by the single mirror toward the scintillator. The single mirror is positioned at an angle with respect to a plane that is normal to the optical axis at a point where the optical axis intersects the single mirror. The angle is decreased from forty-five degrees to reduce a volume of the folded field-of-view of the camera. The angle is greater than or equal to a threshold angle that prevents triple specular reflections of light between the single mirror and the scintillator.

An imaging device includes: a scintillator layer; and an array of photodiode elements; wherein the scintillator layer is configured to receive radiation that has passed through the array of photodiode elements. An imaging device includes: a scintillator layer having a plurality of scintillator elements configured to convert radiation into photons; and an array of photodiode elements configured to receive photons from the scintillator layer, and generate electrical signals in response to the received photons; wherein at least two of the scintillator elements are separated by an air gap. An imaging device includes: a first scintillator layer having a plurality of scintillator elements arranged in a first plane; and a second scintillator layer having a plurality of scintillator elements arranged in a second plane; wherein the first scintillator layer and the second scintillator layer are arranged next to each other and form a non-zero angle relative to each other.

A projection radiographic imaging apparatus includes a scintillator and an imaging array. The imaging array includes a plurality of pixels formed directly on a side of the scintillator. Each of the pixels includes at least one photosensor and at least one readout element.

An X-ray device includes an X-ray source, a scintillator, a single mirror, and a camera. The camera has a field-of-view around an optical axis of the camera. The single mirror fully contains the field-of-view as the field-of-view is folded by the single mirror toward the scintillator. The single mirror is positioned at an angle with respect to a plane that is normal to the optical axis at a point where the optical axis intersects the single mirror. The angle is decreased from forty-five degrees to reduce a volume of the folded field-of-view of the camera. The angle is greater than or equal to a threshold angle that prevents triple specular reflections of light between the single mirror and the scintillator.

Tapered scintillator modules and detection devices having tapered scintillator modules in at least the end that contacts an optical sensor where the taper depends on the location of the scintillator module within the active area of the optical sensor is provided. Tapering of the scintillator modules may be close to the interface between the optical sensor and the module to minimize light leak to neighboring pixels at the interface while still allowing the detection device to retain high geometric efficiency and sensitivity to incident gamma rays since the distal end may not be tapered, which has a highest probability for gamma ray interaction based on Beer-Lambert law for photoelectric absorption.

A radiation imaging apparatus includes a radiation detection sensor, a support base, a bonding member, and a wiring member. The radiation detection sensor is configured to detect radiation and is formed using a flexible substrate. The support base supports radiation detection sensor. The bonding member bonds a first region of the radiation detection sensor to the support base. The first region is located in a central portion of the radiation detection sensor. The wiring member is connected to a predetermined edge portion of the radiation detection sensor. A second region is a region of the radiation detection sensor that includes the predetermined edge portion, and the second region opposes the support base but is not adhered to the support base.

Provided in the present disclosure are a radiation detector module and apparatus, a system, and a manufacturing method. The radiation detector module includes a stacked multilayer structure. The multilayer structure includes: a detector layer, configured to detect a ray that is incident on the detector layer and convert the ray into an electrical signal; a frame layer, wherein the detector layer is disposed on a first side of the frame layer facing a radiation source and is fixed to the frame layer; and a signal processing layer, disposed on a second side of the frame layer opposite to the first side and fixed to the frame layer, wherein the signal processing layer is configured to communicate with the detector layer to receive the electrical signal and process the electrical signal.