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US 12,442,943 B2Granted
Radiation detector
AssigneeCanon Electron Tubes & Devices Co., Ltd.
InventorsTakashi Izumi, Hiroshi Aida
Life of this patent
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Abstract
According to one embodiment, a radiation detector includes a photoelectric conversion substrate having a detection area and a non-detection area, a scintillator layer, a frame-shaped sealant, a cover, and a moisture absorbing layer. A light transmittance of the moisture absorbing layer is changed by changing an amount of moisture in the moisture absorbing layer. The moisture absorbing layer covers the entire scintillator layer in planar view.
Claims12
A radiation detector comprising:
- a photoelectric conversion substrate having a detection area and a non-detection area outside the detection area;
- a scintillator layer provided on the photoelectric conversion substrate and located at least in the detection area;
- a frame-shaped sealant located in the non-detection area, surrounding the scintillator layer, and bonded to the photoelectric conversion substrate;
- a cover provided above the scintillator layer, located in the detection area and the non-detection area, and bonded to the sealant to cover the scintillator layer with the photoelectric conversion substrate and the sealant;
- and
- a moisture absorbing layer which is provided between the scintillator layer and the cover and located at least in the detection area and whose a light transmittance changes as an amount of moisture inside changes,
- wherein
- the moisture absorbing layer covers the entire scintillator layer in planar view.
5 more elements
Dependencies are inferred from the claim text.