The present invention relates to an X-ray detector (10) comprising two or more scintillator layers, comprising: a first scintillator layer (20); a second scintillator layer (30); a first photodiode array (40); a second photodiode array (50); and at least one light emitting layer (60). The first scintillator layer is configured to absorb X-rays from an X-ray pulse and emit light. The first photodiode array is positioned adjacent to the first scintillators layer. The first photodiode array is configured to detect at least some of the light emitted by the first scintillator layer. The second scintillator layer is configured to absorb X-rays from the X-ray pulse and emit light. The second photodiode array is positioned adjacent to the second scintillator layer. The second photodiode array is configured to detect at least some of the light emitted by the second scintillator layer. The at least one light emitting layer is 10 configured to emit radiation such that at least some of the emitted radiation irradiates the first photodiode array and at least some of the emitted radiation irradiates the second photodiode array.

A sensing substrate and an electronic device are provided. The sensing substrate includes a sensing unit on a base substrate. The sensing unit includes a sensing element and a conductive pattern, the sensing element has a light incident surface and a back surface that are opposite and a side surface between the light incident surface and the back surface. The conductive pattern is on a side of the sensing element away from the base substrate, and has a hollow portion and a transparent conductive portion surrounding the hollow portion, an orthographic projection of the hollow portion on the base substrate is at least partially within an orthographic projection of the sensing element on the base substrate, and an orthographic projection of the transparent conductive portion on the base substrate at least partially overlaps with an orthographic projection of the side surface of the sensing element on the base substrate.

According to one embodiment, a radiation detector includes a first conductive layer including a first conductive region, and a first stacked body. The first stacked body includes a first electrode separated from the first conductive region in the a direction, a first scintillator layer provided between the first conductive region and the first electrode, a first intermediate electrode provided between the first scintillator layer and the first electrode, and a first organic semiconductor layer provided between the first intermediate electrode and the first electrode.

A radiation imager comprising pixels each including a converter to generate a signal, a sampling circuit and a processor is provided. The sampling circuit samples the signal with first sensitivity and with second sensitivity higher than the first sensitivity. If a first signal value obtained by sampling the signal with the first sensitivity is smaller than a first threshold, the processor generates a pixel value based on a second signal value obtained by sampling the signal with the second sensitivity, if the first signal value exceeds a second threshold larger than the first threshold value, the processor generates a pixel value based on the first signal value, and if the first signal value is not less than the first threshold and not more than the second threshold, the processor generates a pixel value based on the first and second signal values.

The present disclosure may provide a detector module of an imaging apparatus. The detector module may include a detector assembly configured to detect a signal associated with an object; a cover assembly configured to accommodate the detector assembly; and at least one cooling assembly operably coupled to the cover assembly. The at least one cooling assembly may be configured to cool the detector assembly by providing a cooling medium to the cover assembly.

Particle analyzers having scintillation counters are provided. Particle analyzers of interest include a flow cell for transporting particles in a flow stream, a light source for irradiating a particle in the flow stream at an interrogation point, a particle-modulated light detector for detecting light from the interrogation point, and a scintillation counter for assessing particle radioactivity. In embodiments, the scintillation counter is positioned within the flow cell and configured generate particle radioactivity data that may be associated with a given particle in a plurality of particles. Methods and non-transitory computer readable storage media for practicing the invention are also provided.

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.

A radiation detector having a plurality of pixels is provided. A respective one of the plurality of pixels includes a base substrate; a thin film transistor on the base substrate; an insulating layer on a side of the thin film transistor away from the base substrate; a photosensor on a side of the insulating layer away from the base substrate; a passivation layer on a side of the photosensor away from the base substrate; a scintillation layer on a side of the passivation layer away from the base substrate; and a reflective layer on a side of the scintillation layer away from the base substrate. The photosensor includes a first polarity layer in direct contact with the passivation layer. All sides of the first polarity layer other than a side internal to the photosensor are entirely in direct contact with the passivation layer.

In a conventional radiation capturing device, such as an X-ray device or a CT scanner, a structured surface part, e.g. a scintillator array, is used that is manufactured by mechanical processing, e.g. by dicing and grinding. In order to modifying the scintillating properties of a scintillating material, further manufacturing steps, such as high temperature cycling like sintering etc., are performed in order to restore or at least improve the scintillating properties. This application proposes to form a structured surface part with a particle-in-binder structure containing scintillator or other radiation-relevant particles, using additive manufacturing with a photosensitive mixture to form a layer-wise structure. Therefore, subsequent manufacturing steps, such as sintering, can be omitted. The structured surface part is bendable.

An image detector includes a substrate, a circuit layer, a plurality of light detecting elements, a plurality of driving elements and a crystal scintillation layer. The substrate has a surface. The circuit layer is arranged on the surface of the substrate, and defines a plurality of detecting areas arranged in an array. The light detecting elements and the driving elements are disposed at the detecting areas and electrically connected with the circuit layer. Each driving element drives one or more of the light detecting elements. The crystal scintillation layer is arranged opposite to the substrate and covers the detecting areas. The light detecting elements and the driving elements connect with the surface of the substrate. At least one of the light detecting elements and the driving elements is formed by a process different from the process of forming the circuit layer on the substrate.