Radiation detection apparatus having refractive light checking f

Details Radiation detection apparatus having refractive light checking f Radiation detection apparatus having refractive light checking f

1981-08-03

1983-09-20

McGraw, Vincent P.

Optics: measuring and testing

Inspection of flaws or impurities

Transparent or translucent material

2502521, 250372, G01N 2188

Patent

active

044052340

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.

REFERENCES:
patent: 3540025 (1970-11-01), Levin et al.
patent: 3723746 (1973-03-01), Lawson et al.
patent: 3952196 (1976-04-01), Larsen

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