A positron emission tomography (PET) system is provided. The system includes a first detector panel including a first array of detectors, a second detector panel including a second array of detectors, said second detector panel being moveable relative to a point between the first detector panel and the second detector panel, a tracking system configured to detect a position of said second detector panel relative to the first detector panel while imaging a subject, a computing device in communication with the first detector panel, the second detector panel, and the tracking system, the computing device configured to receive coincidence data from the first and second detector panels, receive position data from the tracking system, wherein each coincidence datum of the received coincidence data is associated with a unique position datum of the received position data, and reconstruct a plurality of images based on the received coincidence data and the received position data.

Apparatuses and methods are provided for generating one or more images using an example apparatus. An example apparatus includes a plurality of pixel elements fabricated on two or more substrates, wherein each pixel element comprises a plurality of compound refractive lenses. Each compound refractive lens comprises a plurality of concave lenses and each compound refractive lens defines a proximal end and distal end. Each pixel element further comprises a plurality of photon counting detectors, wherein each photon counting detector is configured to receive a beam exiting from the distal end of a particular compound refractive lens.

A direction determination device for determining a direction of a source of ionizing radiation relative to the direction determination device includes at least two radiation detection devices with longitudinally designed detection volumes, the at least two radiation detection devices are arranged at an angle relative to one another. A first radiation detection device is designed as a symmetry-maintaining angle-dependent radiation detection device. A second radiation detection device is designed as a symmetry-breaking angle-dependent radiation detection device.

The disclosure relates to a system and method for medical imaging. The method may include: move, by a motion controller, a phantom along an axis of a scanner to a plurality of phantom positions; acquire, by a scanner of the imaging device, a first set of PET data relating to the phantom at the plurality of phantom positions; and store the first set of PET data as an electrical file. The length of an axis of the phantom may be shorter than the length of an axis of the scanner, and at least one of the plurality of phantom positions may be inside a bore of the scanner.

Embodiments of a multi-stage pixel architecture for radiation imaging, and related detectors and radiation imaging systems including the same are described. Embodiments of methods of performing synchronous read/integrate using pixels described herein are also described.

This disclosure provides an area array detector, a detection method, and a corresponding container/vehicle inspection system, and relates to the field of ray scanning. The area array detector for the container/vehicle inspection system includes sparsely arranged detector assemblies, and a first detector assembly is different from other second detector assemblies; and a backplane for carrying and mounting detector assemblies, and the area array detector supporting scanning modes is enabled.

The present invention provides a detector and an emission tomography device including the detector. The detector comprises: a scintillation crystal array comprising a plurality of scintillation crystals; and a photo sensor array, coupled to an end surface of the scintillation crystal array and comprising multiple photo sensors. At least one of the multiple photo sensors is coupled to a plurality of the scintillation crystals respectively. Surfaces of the plurality of the scintillation crystals not coupled to the photo sensor array are each provided with a light-reflecting layer, and a light-transmitting window is disposed in the light-reflecting layer on a surface among the surfaces adjacent to a scintillation crystal coupled to an adjacent photo sensor. The detector has DOI decoding capability. No mutual interference occurs during DOI decoding, and decoding is more accurate. Moreover, with the number of photo sensor arrays being the same, the decoding capability for the scintillation crystals is significantly improved. With the number of photo sensor arrays being the same, the size of the photo sensor array and the number of channels of a readout circuit of the photo sensors of the present invention can be reduced by three-quarters to eight-ninths.

A radiation detection device according to an embodiment includes a scintillator and a processing circuit. The processing circuit measures transferred energy when scintillation is caused after a gamma ray incident on a scintillator generates Cherenkov light and estimates a Cherenkov angle based on the transferred energy.

The disclosure relates to a system and method for reconstructing a PET image. The method may include: obtaining PET data relating to an object collected by a plurality of detector units; determining functional status of the plurality of detector units; generating reconstruction data based on the functional status of the respective detector units and the PET data; and reconstructing a PET image based on the reconstruction data.

A PET detector having some light guides not cut, comprising a light guide bar array unit having some light guides not cut. The light guide bar array unit is in the form of an array consisting of a plurality of parallel light guide bars (2), and adjacent light guide bars (2) in some regions of the light guide bar array unit and a reflective material (4) between every two light guide bars are replaced with a light guide three-dimensional block having the identical shape and volume, taken as a whole. The detector sequentially comprises a layer formed by a scintillating crystal array unit, a layer formed by the light guide bar array unit, and a layer formed by a silicon photomultiplier array unit in an arrangement order.