High voltage assemblies and detectors are provided. In one aspect, a high voltage assembly includes a high voltage base board and a plurality of sub-detectors. Each sub-detector includes a crystal substrate, a crystal, a high voltage transfer board, and a high voltage cathode board. One of the high voltage transfer board and the high voltage base board includes first and second connection members, and the other one includes first and second contact members. The first connection member is configured to shift relative to the first contact member in response to a first force, and the second connection member is configured to shift relative to the second contact member in response to a second force. A high voltage is applied at both ends of the crystal through electrically contacting the first connection member with the first contact member and electrically contacting the second connection member with the second contact member.

A radiation detector includes a wiring board, a first image sensor, a second image sensor, a first fiber optic plate, a second fiber optic plate, and a scintillator layer. The first fiber optic plate can guide light between a first light entering region and a first light exiting region. The second fiber optic plate can guide light between a second light entering region and a second light exiting region. One side of the first light entering region and one side of the second light entering region are in contact with each other. The first light exiting region is positioned on a first light receiving region. The second light exiting region is positioned on a second light receiving region. One side surface of a first side surface and one side surface of a second side surface exhibit shapes along each other and in contact with each other.

A radiation imaging apparatus, comprising a sensor array in which a plurality of sensor units are arranged and a driving unit for driving the sensor array, wherein each sensor unit includes u detection element for detecting radiation and a sampling unit configured to be able to sample a signal from the detection element, the sampling unit is connected to a signal line configured to propagate a signal from the detection element, the driving unit uses the sampling unit to perform a first sampling driving operation and a second sampling driving operation to sample the signal propagating through the signal line, and the driving unit starts the second sampling driving operation before the completion of the first sampling driving operation and completes the second sampling driving operation after the completion of the first sampling driving operation.

An imaging capsule including, a radiation source, a collimator that provides a collimated beam from the radiation source, at least one detector configured to detect particles resulting from X-ray fluorescence and/or Compton backscattering in response to the collimated beam to reconstruct images of a user's gastrointestinal tract, wherein the imaging capsule is configured to identify an inflamed area, within the user's gastrointestinal tract, based on a count of the detected particles and initiate actions responsive to detecting the inflamed area.

A radiological imaging method including: 2 radiation sources with imaging directions orthogonal to each other, performing vertical scanning of a standing patient along a vertical scanning direction, wherein the radiological method includes at least one operating mode in which: a frontal scout view is made so as to identify a specific bone(s) localization within the frontal scout view, both driving current intensity and voltage intensity modulations of the frontal radiation source, depending on patient thickness and on the identified specific bone(s) localization along the vertical scanning direction, are performed simultaneously, preferably synchronously, and automatically, so as to improve a compromise between: lowering the global radiation dose received by a patient during the vertical scanning, and increasing the local image contrasts of the identified specific bone(s) localization at different imaging positions along the vertical scanning direction, for the frontal image.

A carrier positioning device includes a carrying base (100) and a carrier (200). A clamp (110) is arranged on the carrying base (100) and a protruding hook (113) protrudes from one side of a distal end (111) of the clamp (110). The carrier (200) has a pipe (210), and a joint (220) is disposed at one end of the pipe (210). The protruding hook (113) hooks one side of the joint (220) so that at least another portion of the carrier (200) is in contact with the carrying base (100). Accordingly, the carrier (200) can be quickly installed or be removed along a lateral direction.

A method and system for using in a Positron Emission Tomography (PET) system. The PET system comprises at least one processor and a storage. The PET system comprises an acquisition module and a processing module. The acquisition module is configured to acquire a PET data set corresponding to a target object. The acquisition module comprises a first light sensor array, a second light sensor array, and a scintillator array. The processing module is configured to determine a three-dimensional position of an incidence photon based on the PET data set. The first number of light sensors in the first light sensor array and the second number of light sensors of the second light sensor array is less than the number of scintillator of the scintillator array.

A detector module is provided. The detector module may include a plurality of detector sub-modules. Each of the plurality of detector sub-modules may include a detection layer, at least one data acquisition circuitry, a frame for supporting the detection layer, and a positioning element for assembling the plurality of detector sub-modules. The frame may include a plurality of heat transfer fins that are thermally connected with the at least one data acquisition circuitry for dissipating heat produced by the at least one data acquisition circuitry.

Improved imaging devices and methods. A portable SPECT imaging device may co-register with imaging modalities such as ultrasound. Gamma camera panels including gamma camera sensors may be connected to a mechanical arm. A coded aperture mask may be placed in front of a gamma-ray photon sensor and used to construct a high-resolution three-dimensional map of radioisotope distributions inside a patient, which can be generated by scanning the patient from a reduced range of directions around the patient and with radiation sensors placed in close proximity to this patient. Increased imaging sensitivity and resolution is provided. The SPECT imaging device can be used to guide medical interventions, such as biopsies and ablation therapies, and can also be used to guide surgeries.

The invention relates to a computer-assisted tomography (CT) system having the following features: a) at least one X-ray source, b) at least one patient couch for supporting a patient, c) at least one first X-ray detector, provided permanently or at least temporarily in the ray path of the X-rays radiated by the X-ray source through the patient couch, d) at least one second X-ray detector, provided permanently or at least temporarily in the ray path of the X-rays radiated by the X-ray source through the patient couch, e) at least one actuable drive mechanism, using which the first and/or second X-ray detector can be moved from a position in the ray path of the X-rays radiated by the X-ray source through the patient couch, to a position outside the ray path and vice versa, f) at least one electronic control device that is configured to actuate the drive mechanism.