Radiation detection apparatus

Details Radiation detection apparatus Radiation detection apparatus

1987-05-29

1989-05-02

Willis, Davis L.

Optics: measuring and testing

Inspection of flaws or impurities

Transparent or translucent material

250372, G01N 2188

Patent

active

048263168

ABSTRACT:
Apparatus for detecting radiation with a light-sensitive radiation receiving tube enclosed in a housing behind a transparent window, the invention including an auxiliary internal light source for testing the optical transmissive properties of the window and including a shielding member between the auxiliary light source and the radiation-receiving tube and a reflective mirror for directing light from the auxiliary light source toward the window for reflection off an external interface surface thereof toward the radiation-receiving tube.

REFERENCES:
patent: 3952196 (1976-04-01), Larsen
patent: 4405234 (1983-09-01), Juaire
patent: 4547673 (1985-10-01), Larsen et al.

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