A method for multidimensional direction measurement of gamma radiation in the far field by means of a group of several energy discriminating detectors synchronized with each other for detection of radiation can use unidirectional and bidirectional Compton scattering processes and lookup tables LUT.sup.SK, a defined functional value f(E1,E2), a list of defined detector pairs with an identification number i for defined detector pairs, and one or more frequency distributions Y for the acquisition of the measurement values. In some embodiments, the method can include setting up a detector system, acquiring measurement values, associating coincidence events with an Identification number, calculating a functional value, acquiring coincidence events in frequency distributions, and calculating one or more direction distributions from the frequency distributions.

When designing detector arrays for diagnostic imaging devices, such as PET or SPECT devices, a virtual detector, or pixel, combines scintillator crystals with photodetectors in ratios that deviate from the conventional 1:1 ratio. For instance, multiple photodetectors can be glued to a single crystal to create a virtual pixel which can be software-based or hardware-based. Light energy and time stamp information for a gamma ray hit on the crystal can be calculated using a virtualizer processor or using a trigger line network and time-to-digital converter logic. Additionally or alternatively, multiple crystals can be associated with each of a plurality of photodetectors. A gamma ray hit on a specific crystal is then determined by a table lookup of adjacent photodetectors that register equal light intensities, and the crystal common to such photodetectors is identified as the location of the hit.

An imaging system is provided. A method for installing the imaging system is provided. The imaging system may include a first modality imaging apparatus. The first modality imaging apparatus may have a detector including a scintillator unit, a photodetector unit, a circuit unit, a supporting block, and a supporting board. The supporting block may be disposed on an end of the scintillator unit. The supporting board may be disposed between the photodetector unit and the circuit unit.

A device for generating one or more images of a source distribution of a gamma radiation field in the near and far field can include a detector system that includes several synchronized detectors for detecting radiation, system electronics that registers coincidence events, a data acquisition system that stores the measurement data of the coincidence events, and an analysis unit that performs an image reconstruction, which reconstructs one or more images of the source distribution of the radiation field.

Provided area device for detecting sub-atomic particles and method of fabrication thereof. The device includes a plurality of scintillators, a detector provided on a first end of the plurality of scintillators and a prismatoid provided on a second end of the plurality of scintillators. The prismatoid redirects light between adjacent scintillators of the plurality of scintillators.

A method for multidimensional direction measurement of gamma radiation in the far field by means of a group of several energy discriminating detectors synchronized with each other for detection of radiation can use unidirectional and bidirectional Compton scattering processes and lookup tables LUT.sup.SK, a defined functional value f(E1,E2), a list of defined detector pairs with an identification number i for defined detector pairs, and one or more frequency distributions Y for the acquisition of the measurement values. In some embodiments, the method can include setting up a detector system, acquiring measurement values, associating coincidence events with an Identification number, calculating a functional value, acquiring coincidence events in frequency distributions, and calculating one or more direction distributions from the frequency distributions.

An imaging system is provided. A method for installing the imaging system is provided. The imaging system may include a first modality imaging apparatus. The first modality imaging apparatus may have a detector including a scintillator unit, a photodetector unit, a circuit unit, a supporting block, and a supporting board. The supporting block may be disposed on an end of the scintillator unit. The supporting board may be disposed between the photodetector unit and the circuit unit.

A PET detector and method thereof are provided. The PET detector may include: a crystal array including a plurality of crystal elements arranged in an array and light-splitting structures set on surfaces of the plurality of crystal elements, the light-splitting structures jointly define a light output surface of the crystal array; a semiconductor sensor array, which is set in opposite to the light output surface of the crystal array and is suitable to receive photons from the light output surface, the semiconductor sensor array comprises a plurality of semiconductor sensors arranged in an array.

The application provides a three-dimensionally heterogeneous PET system comprising at least two heterogeneous detector modules, each comprising at least two kinds of crystal strips closely arranged to form different detection performances levels for different kinds of crystal strips and same detection performances levels for same kind of crystal strips. Parameters of detection performances of crystal strips comprise energy resolution, density, size and light output, wherein different detection performances levels for crystal strips comprise one or more of parameters of detection performances of crystal strips being in different levels. Compared with a high spatial resolution PET system, the application effectively reduces manufacturing costs of a PET system without significantly reducing spatial resolution thereof. Compared with an ordinary spatial resolution PET system, it improves spatial resolution of a PET system by slightly increasing its cost, and can also provide imaging field of view with high spatial resolution in radial direction.

The invention relates to a gamma radiation detector that provides compensation for the parallax effect. The gamma radiation detector includes a plurality of scintillator elements, a planar optical detector array, and a pinhole collimator that includes a pinhole aperture. Each scintillator element has a gamma radiation receiving face and an opposing scintillation light output face. The gamma radiation receiving face of each scintillator element faces the pinhole aperture for generating scintillation light in response to gamma radiation received from the pinhole aperture. The scintillator elements are arranged in groups. Each group has a group axis that is aligned with the pinhole aperture and is perpendicular to the radiation receiving face of each scintillator in that group. The scintillation light output faces of each of the scintillator elements are in optical communication with the planar optical detector array.