Radiant energy – Invisible radiation responsive nonelectric signalling – Optical change type
Patent
1980-12-17
1983-05-24
Smith, Alfred E.
Radiant energy
Invisible radiation responsive nonelectric signalling
Optical change type
350299, G01N 2100
Patent
active
043852378
ABSTRACT:
A reflecting optical dosimeter for measuring radiation exposure made of a in block of radiation sensitive optical material which darkens upon exposure to ionizing and nuclear radiation. The block has an input light pipe at one corner and an output light pipe at another corner, arranged so that the light follows a path including several reflections off of the edges of the block to thereby greatly extend the length of the path. One corner of the block is formed at an angle so that after the light is reflected several times between two opposite edges, it strikes the angled corner and is then reflected between the other two edges before exiting at the output light pipe. The decreased transmission of light from the input to the output pipe is a measure of the radiation dose.
REFERENCES:
patent: 2972051 (1961-02-01), Baum
patent: 3591287 (1971-07-01), Hannis
Drukaroff Israel
Fishman Robert
Dougherty Anne Vachon
Fields Carolyn E.
Gibson Robert P.
Murray Jeremiah G.
Smith Alfred E.
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