| 摘要 |
A pressure vessel of an X-ray detector, in which the contamination and leakage of xenon gas contained in the detector is prevented. The pressure vessel of the invention comprises a container of a curved pillar shape with a window through which the X-ray passes. The container is made of a metal, and the window faces inward of the curvature of the container. A carbon fiber-reinforced plastic sheet is fixed to the inner wall of the periphery of the window to cover the window. An elastic insulation sheet is attached to the inside of the carbon fiber-reinforced plastic sheet so as to cover the window. A metal foil is attached to the inside of the elastic insulation sheet so as to cover the window.
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