The present disclosure relates to a system for PET imaging. The system may include a detector module and an electronics module. The detector module may include a scintillator array having N rows of scintillators arranged in a first direction and M columns of scintillators arranged in a second direction, a first set of photosensors coupled to the scintillator array and extending in the second direction, and a second set of photosensors coupled to the scintillator array and extending in the first direction. The electronics module may detect a first set of electrical signals generated by the first set of photosensors and a second set of electrical signals generated by the second set of photosensors, and identify a scintillator within the scintillator array that has interacted with an impinging radiation ray relating to an electrical signal of the first set of electrical signals or the second set of electrical signals.

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.

The invention relates to a device for the detection of gamma rays (1) coming from a source (2) without image truncation and without image overlapping, comprising, at least, two detection cells (3) and each of said cells comprising a detection space (7) adapted to receive the gamma rays (1) that penetrate through an opening (5), wherein said detection space (7) comprises one or more detection assemblies (8, 8′), with some of said assemblies (8′) being positioned such that they stand in the way of the gamma rays (1) coming into the overlap volume (11) thereof.

Among other things, one or more techniques and/or systems are described for setting a sampling frequency for a radiation imaging system. The radiation imaging system comprises a rotating gantry configured to rotate a radiation source and a detector array about an object to generate an image(s) of the object. A data acquisition system is configured to sample the detector array as views. One or more flag structures are arranged according to a partial arc segment (e.g., a structure less than a full 360 degree circle). One or more sensors are disposed on one of the rotating gantry or a stationary support about which the rotating gantry rotates. When a sensor encounters a flag structure, a current rotational speed of the rotating gantry is determined. A clock frequency is updated based upon the current rotational speed to establish a sampling frequency for the data acquisition system for sampling the detector array.

A multifunction gamma radiation detector includes a supporting rod, a detection head coupled to or integrated with a first end of the supporting rod including detection elements separate from each other for simultaneously detecting gamma radiation directed along respective directions. Each detection element includes a scintillation crystal and corresponding first electronic conversion circuitry for receiving an optical signal from the crystal and converting it into an electrical signal. The detector also includes a handgrip, connectable to a second end of the supporting rod and which can be manually gripped by an operator to direct the detector, and a second electronic circuitry for converting and/or treating the signals connected to the first electronic conversion circuitry. The head also includes an optical detection device acquiring a sequence of optical signals emitted by a suitably energized body tissue. The detection elements are angularly distributed on the detection head about optical detection device.

Various noncollimated single photon emission computed tomography (SPECT) technologies are described herein. An example device includes an array of detectors configured to detect a flux of first photons transmitted from a field of view (FOV) over time. The device also includes an attenuator disposed between the array of detectors and the FOV. The attenuator is configured to move over time and to attenuate second photons emitted from the source. In various implementations, the attenuator is not a collimator. Based on the fluxes of the first photons detected by the detectors, and the position of the attenuator over time, an imaging system may be configured to generate an image of the FOV.

Provided herein are compounds that are broad-spectrum protein kinase binding agents, detectable tracers comprising such compounds, and method of use thereof for the detection of protein kinases.

The invention relates to a device for the detection of gamma rays coming from a source without image truncation and without image overlapping, comprising, at least, two detection cells and each of said cells comprising a detection space adapted to receive the gamma rays that penetrate through an opening, wherein said detection space comprises one or more detection assemblies, with some of said assemblies being positioned such that they stand in the way of the gamma rays coming into the overlap volume thereof.

The present disclosure relates to a system for PET imaging. The system may include a detector module and an electronics module. The detector module may include a scintillator array having N rows of scintillators arranged in a first direction and M columns of scintillators arranged in a second direction, a first set of photosensors coupled to the scintillator array and extending in the second direction, and a second set of photosensors coupled to the scintillator array and extending in the first direction. The electronics module may detect a first set of electrical signals generated by the first set of photosensors and a second set of electrical signals generated by the second set of photosensors, and identify a scintillator within the scintillator array that has interacted with an impinging radiation ray relating to an electrical signal of the first set of electrical signals or the second set of electrical signals.

Provided is a particle detection device and method of fabrication thereof. The particle detection device includes a scintillator array that includes a plurality of scintillator crystals; a plurality of detectors provided on a bottom end of the scintillator array; and a plurality of prismatoids provided on a top end of the scintillator array. Prismatoids of the plurality of prismatoids are configured to redirect particles between top ends of crystals of the scintillator array. Bottom ends of a first group of crystals of the scintillator array are configured to direct particles to a first detector of the plurality of detectors and bottom ends of a second group of crystals of the scintillator array are configured to direct particles to a second detector substantially adjacent to the first detector.