The disclosure relates to a system and method for evaluating and calibrating detector in a scanner, further evaluating and calibrating time information detected by at least one time-to-digital convertor.

A radiation imaging apparatus including: a first scintillator layer configured to convert a radiation (R) which has entered the first scintillator layer into light; a second scintillator layer configured to convert a radiation transmitted through the first scintillator layer into light; a fiber optic plate (FOP) provided between the first scintillator layer and the second scintillator layer; and an imaging portion configured to convert the light generated in the first scintillator layer and the light generated in the second scintillator layer into an electric signal.

Devices may include a scintillation detection device including a scintillator, a photon detector at least partially enclosed by the scintillator, and at least one reflector at least partially enclosing the scintillator. In another aspect, an oilfield wellbore device may include an oilfield string with at least one scintillation detection device on the string and a pressure housing enclosing the one or more scintillation detection devices. In another aspect, a method of measuring radiation in an oil and gas well may include conveying at least one scintillation detection device to at least one zone of interest in the oil and gas well and recording data from at least one scintillation detection device as a function of location in the well.

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.

An X-ray detector and an X-ray image system using the same are disclosed. The X-ray image system comprises an X-ray generator irradiating X-rays to an object to be photographed; an X-ray detector including a first photoelectric converter receiving X-rays transmitted the object and converting the X-rays in to a first electric signal and a second photoelectric converter converting the X-rays in to a second electric signal; a first image processor processing a first image of the object on the basis of the first electric signal of the X-ray detector; a second image processor processing a second image of the object on the basis of the second electric signal of the X-ray detector; a display module displaying the first and second processed images of the object; and a controller controlling the X-ray generator, the X-ray detector, the first and second image processors and the display module.

Provided is a scintillator panel including: a support; a scintillator layer provided on the support, the scintillator layer being composed of av columnar crystal; and a protective film covering at least the scintillator layer. The scintillator layer contains cesium iodide as a base material and cerium as an activator.

Various embodiments can include apparatus or methods to operate and provide detection packages. In various embodiments, detection packages may include an illuminating device, a photodetector, and an optical coupling component disposed between the illuminating device and the photodetector, where the optical coupling component can be structured to enhance the coupling of light from the illuminating device to the photodetector. Additional apparatus, systems, and methods are disclosed.

A detector assembly for use in detecting radiation includes a scintillator and a solid state photomultiplier coupled to the scintillator. The detector assembly may include a light guide connected between the scintillator and the solid state photomultiplier. The detector assembly may be used within a receiver in a logging instrument for use downhole. The receiver is configured to detect radiation produced by an emitter or from naturally occurring sources.

A radiation detector can include a scintillator having opposing end surfaces and a plurality of discrete photosensors disposed on an end surface of the scintillator. In an embodiment, the photosensors are disposed at the corners or along the peripheral edge of the end surface, as opposed to being disposed at the center of the end surface. In an embodiment, the plurality of discrete photosensors may cover at most 80% of a surface area of the end surface of the scintillator and may not cover a center of the end surface of the scintillator. In a further embodiment, an aspect ratio of the monolithic scintillator can be selected to improve energy resolution.

A radiation detector has reflection materials that segment a scintillator array to respective areas, a first accumulator 41, which adds multiple signals amplified by amplifiers 30 in the area segmented by the reflection materials, per area segmented by the reflection materials, a first trigger generation circuit 42, that generates a trigger of the signals added by the first accumulator, per area segmented by the reflection materials. When the signals are added, the superimposition of the inherent noises of each amplifier 30 can be reduced as much as the area segmented by the reflection materials, so that the signal noise can be reduced by increasing the S/N (signal/noise) ratio. The signals (timing signals) are respectively and separately generated based on each trigger in the different area to each other and converged by the encoder 50, so that probability of pileup (multiple pileups) can be reduced and an accurate timing signal can be obtained.