| 摘要 |
PURPOSE:To reduce light losses on the surface of a scintillator and to improve the efficiency of the radiation detector by polishing the surface of the amorphous scintillator specularly, then forming a transparent film which is thick enough to smooth the outermost surface, and forming a light reflecting film on the surface. CONSTITUTION:The light from the amorphous solidified scintillator 1 is easily emitted by scintillator particles by providing a transparent film 2 which has a smaller refractive index than the scintillator 1 and a larger refractive index than air, and guided to the transparent film 2. The surface of this transparent film 2 is close to a mirror surface, so when the outside surface is covered with a metallic reflecting film 3 with a high light reflection factor, the scintillator side serves a light reflecting mirror. The light 6 guided to the transparent film 2 is transmitted through the film 2, and reflected by the border surface between the metallic reflecting film and transparent film to return to be scintillator 1. Consequently, the optical path of the light 6 from the scintillator 1 is selected.
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