This disclosure describes an imaging radiation detection module with novel configuration of the scintillator sensor allowing for simultaneous optimization of the two key parameters: detection efficiency and spatial resolution, that typically cannot be achieved. The disclosed device is also improving response uniformity across the whole detector module, and especially in the edge regions. This is achieved by constructing the scintillation modules as hybrid structures with continuous (also referred to as monolithic) scintillator plate(s) and pixellated scintillator array(s) that are optically coupled to each other and to the photodetector. There are two basic embodiments of the novel hybrid structure: (1) the monolithic scintillator plate is at the entrance for the incoming radiation, preferably gamma rays, and the pixellated array placed behind the plate, all in optical contact with the photodetector, (2) the order of the scintillator components is reversed with the pixellated scintillation plate placed in front of the monolithic plate.

A scintillator module includes a substrate, a columnar scintillator crystal layer formed on the substrate, and a non-adhesive moisture-proof member having a given hardness and opposing a crystal growing side of the columnar scintillator crystal layer. The moisture-proof member ensures a void between the moisture-proof member and individual conic peak portions of columnar scintillator crystals forming the columnar scintillator crystal layer under vacuum sealing, and holds the columnar scintillator crystal layer in a moisture-proof state between a moisture-proof layer and the substrate.

An example apparatus includes a drill bit body and a leg extending from the drill bit body. A journal may extend from the leg, with a gamma ray detector at least partially within the journal. In certain embodiments, the gamma ray detector may be confined within a pressure protective cavity at least partially within the arm of the journal. In certain embodiments, the gamma ray detector may be a scintillator aligned with at least one of a photomultiplier, photodiodes, or phototransistors.

A detector apparatus includes a scattered radiation grid; a scintillator unit for converting X-rays into a light quantity; an evaluation unit for converting the light quantity into electric signals; and a module-receiving appliance. The scintillator unit and the scattered radiation grid are mechanically connected to the module-receiving appliance via a first connection and the evaluation unit is mechanically connected to the module-receiving appliance via a second connection, independent of the first connection. The evaluation unit, the scintillator unit and the scattered radiation grid are aligned with respect to one another such that light quantity, when emitted from sub-regions of the scintillator unit, is registered by sub-regions of the evaluation unit.

This invention presents a new device to produce images of the gamma field, specially designed for circumstances requiring high efficiency and fast response imaging, by applying the concept of image extraction within a given field of view, through the combination of efficient gamma radiation detectors. Each detector is located inside a shielding, with an area of the detector with no shielding to enter the incident gamma radiation detector with a plurality of angles in relation to the normal outgoing central axis to the surface of the detector through the unshielded area, where that central axis is divergent in relation to the outgoing central axes of neighboring detectors.

A scintillator module includes a substrate, a columnar scintillator crystal layer formed on the substrate, and a non-adhesive moisture-proof member having a given hardness and opposing a crystal growing side of the columnar scintillator crystal layer. The moisture-proof member ensures a void between the moisture-proof member and individual conic peak portions of columnar scintillator crystals forming the columnar scintillator crystal layer under vacuum sealing, and holds the columnar scintillator crystal layer in a moisture-proof state between a moisture-proof layer and the substrate.

Disclosed herein is radiation detector, comprising a first photodiode comprising a first junction; and a first scintillator, wherein a first point in a first plane and inside the first scintillator is essentially completely surrounded in the first plane by an intersection of the first plane and the first junction. The first junction is a p-n junction, a p-i-n junction, a heterojunction, or a Schottky junction. The radiation detector further comprises a first reflector configured to guide essentially all photons emitted by the first scintillator into the first photodiode. The first scintillator is essentially completely enclosed by the first reflector and the first photodiode.

A radiation detector with first and second scintillator structures is disclosed. The first scintillator structure comprises a plurality of first scintillator pixels. The first scintillator pixels are separated by gaps, which may be filled with a reflective material to achieve an optical separation of the first scintillator pixels. The second scintillator structure is adapted to increase the absorption of radiation and the output of light. Thereto, the second scintillator structure overlaps at least partially the gaps between first scintillator pixels. The second scintillator structure is optically coupled to the first scintillator structure, so that light emitted by the second scintillator structure is fed into first scintillator pixels. The second scintillator structure may be mounted onto the first scintillator structure using additive manufacturing.

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.

The embodiments of the present disclosure provide detector systems and imaging devices. The system may include a first photosensor array, a second photosensor array and a readout module. A position of the first photosensor array may be opposite to a position of the second photosensor array. Configurations of the first photosensor array and the second photosensor array may be the same. The first photosensor array and the second photosensor array may be configured to output electrical signals related to radiated photons, respectively. The readout module may include a first readout unit and a second readout unit. Configurations of the first readout unit and the second readout unit may be the same. The first readout unit and the second readout unit may be configured to precess the electrical signals.