Ceramic radiation shield and radiation detector using same

1. Field of the Invention Sintered ceramics having such high radiation shielding capability and so easy to machine that they can be used as a radiation shield for radiation detectors are disclosed. The ceramics show a radiation shielding capability more than 90% and preferably have high light reflec...

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Bibliographic Details
Main Authors Tsunota, Kenichi, Yamada, Nobuyuki, Furuichi, Shinji, Sasaki, Takeo
Format Patent
LanguageEnglish
Published 17.12.2002
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Summary:1. Field of the Invention Sintered ceramics having such high radiation shielding capability and so easy to machine that they can be used as a radiation shield for radiation detectors are disclosed. The ceramics show a radiation shielding capability more than 90% and preferably have high light reflecting performance. They may comprises rare-earth oxides such as gadolinium oxide, oxide of at least one of vanadium, tantalum and niobium and alkali-earth oxide which is used for a sintering agent. They can be used as a radiation shield in place of a molybdenum or tungsten radiation shielding plate and also as a light reflecting film instead of titanium dioxide film in a radiation detector for radiation CT equipment.