Catoptric differential sensing device
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United States of America Patent
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-
Apr 9, 1991
Grant Date -
N/A
app pub date -
Oct 8, 1987
filing date -
Oct 8, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A radiation detector comprising a first pair of flat reflective surfces parallel to one another and connected by a second pair of flat rectangular reflective surfaces converging toward one another so as to form a reflective chamber having a relatively wide opening for the entrance of radiation and a relatively narrow opening defining a region for receiving radiaiton, there being a radiation sensor positioned in the receiving region for detecting fluctuations in levels of radiation received from a plurality of detection zones.
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