Radiation detection apparatus having refractive light checking feature
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United States of America Patent
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-
Sep 20, 1983
Grant Date -
N/A
app pub date -
Aug 3, 1981
filing date -
Aug 3, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus for detecting hazardous radiation with a light sensitive radiation receiving tube enclosed in a housing behind a transparent window, and including an auxiliary internal light source positioned for transmitting light rays into the window and reflecting a portion thereof from the front interface surface of the window back to an internal mirror and to the radiation detection tube for self checking purposes.
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