Embodiments of the invention are utilized to improve the timing performance of SiPM based PET detectors with light-sharing configuration. The universal readout design utilizes adaptive group readout to process noisy and slow signals generated by SiPM devices, and provides enhanced timing capabilities with simplified readout electronics.

A scintillator includes a scintillator layer including a phosphor and an augmenting agent and has an optical reflectance A1 at a wavelength 440 nm and an optical reflectance B1 at a wavelength 520 nm, wherein when an optical reflectance at the wavelength 440 nm is defined as A2 and an optical reflectance at the wavelength 520 nm is defined as B2 after exposure to 2,000R of radiation, ratios between the optical reflectances “A=A2/A1” and “B=B2/B1” before and after exposure to radiation satisfy “0.70≦A/B≦1.10”.

Method and apparatus for downhole photon imaging. The downhole photon imaging apparatus includes a photon source that emits photons; a scintillation device that generates a light signal in response to received photons; a light sensing device coupled with the scintillation device for generating an electronic signal in response to a received light signal; and a collimator coupled with the scintillation device which has a design that allows photons with single Compton backscattering and backscattered at a pre-determined backscattering angle to be detected by the scintillation device.

Some embodiments include an electronic device. The electronic device includes a first scintillator layer, a transistor, and one or more device elements over the transistor, and the one or more device elements include a photodetector. Meanwhile, the first scintillator layer is monolithically integrated with at least one of the transistor or the one or more device elements. Other embodiments of related systems, devices, and methods are also disclosed.

A radiation detection device includes a circuit board, a light receiving sensor having a light receiving region and a plurality of circuit regions, an FOP, a scintillator layer, and a plurality of wires. The FOP includes a first portion facing the light receiving region and fixed to the light receiving sensor, a second portion facing the circuit region while separated from the light receiving sensor, and a second portion facing the circuit region while separated from the light receiving sensor. The second portions are integrally formed with the first portion. One end of the wire is connected to the circuit region in a region between the light receiving sensor and the second portion, and one end of the wire is connected to the circuit region in a region between the light receiving sensor and the second portion.

A borehole muon detector for detecting and characterizing a geographic region of interest is provided, the borehole muon detector comprising a housing and sensor, which is housed in the housing, the sensor including: a plurality of photodetector elements; at least one printed circuit board in electrical communication with the plurality of photodetectors and including an integrated electronic circuit for tracking time; a first helical bundle of scintillator fibers; an oppositely wound helical bundle of scintillator fibers, the oppositely wound helical bundle, the first helical bundle and the opposite helical bundle defining an outer cylinder, which includes a first end and a second end and a bore therebetween, each scintillator fiber of each bundle directly optically connected to a photodetector element at least at one end and indirectly optically connected to the photodetector element at no more than one end; and a plurality of scintillator bars, each comprising a first end, a second end and an optical fiber extending from the first end to the second end, the plurality of scintillator bars vertically disposed in the bore of the outer cylinder, each optical fiber of the scintillator bar optically directly connected to a photodetector element at least at one end and indirectly optically connected to the photodetector at no more than one end.

A nuclear detector, comprises a scintillation crystal array including a plurality of scintillation crystal bars of the same size arranged closely and in sequence, a light guide, and a photodetector array including a plurality of photodetectors arranged in sequence. The photodetectors have a cross-sectional area greater than that of the scintillation crystal bars, and the light guide includes a top surface coupled to the scintillation crystal array, an opposed bottom surface coupled to the photodetector array and a side surface. The light guide has a thickness in a range of 0.1 mm to 40 mm. The light guide further includes a slit adjacent to an edge of the light guide, and the slit is configured to extend from the top surface toward the bottom surface of the light guide and the slit has a depth in a range of 0.1 to 0.5 times the thickness of the light guide.

Some embodiments include a system, comprising a hybrid imaging device comprising: a first scintillator; a first detector sensors configured to generate a signal based on photons emitted from the first scintillator; a second scintillator; a second detector sensors configured to generate a signal based on photons emitted from the second scintillator; and a control logic coupled to the first detector layer and the second detector layer; wherein: a material of the first scintillator is different from a material of the second scintillator; the first detector overlaps the second detector; and the control logic is configured to generate dose data in response to the first detector and image data in response to the second detector.

A radiation detection apparatus can include a scintillator to emit scintillating light in response to absorbing radiation; a photosensor to generate an electronic pulse in response to receiving the scintillating light; an analyzer to determine a characteristic of the radiation; and a housing that contains the scintillator, the photosensor, and the analyzer, wherein the radiation detection apparatus to is configured to allow functionality be changed without removing the analyzer from the housing. The radiation detection apparatus can be more compact and more rugged as compared to radiation detection apparatuses that include a photomultiplier tube.

An X ray device, including an array substrate, a scintillator layer, a first adhesion layer, a function film, and a second adhesion layer, is provided. The scintillator layer is disposed on the array substrate. The first adhesion layer is disposed between the scintillator layer and the array substrate. The function film is disposed on the array substrate. The second adhesion layer is disposed between the function film and the array substrate. The function film covers the scintillator layer.