Converter for converting non-luminous photons into luminous phot

Details Converter for converting non-luminous photons into luminous phot Converter for converting non-luminous photons into luminous phot

1980-08-11

1983-08-09

Smith, Alfred E.

Radiant energy

Invisible radiation responsive nonelectric signalling

Luminescent device

2504871, G01J 158

Patent

active

043980937

ABSTRACT:
The invention relates to a converter for converting non-luminous, so-called input photons such as X or .gamma. photons, into luminous photons, and to an installation for the non-destructive inspection of a material, employing this converter. The converter comprises a layer of luminophore disposed on the path of said non-luminous photons and, upstream of said layer of luminophore, with respect to the direction of displacement of the non-luminous photons, a metal foil in which said non-luminous photons are converted into non-luminous photons of lower energy, by collision (Compton effect) of said input photons on electrons of said metal foil. The invention is more particularly applicable to the non-destructive inspection of concrete structures.

REFERENCES:
patent: 3163765 (1964-12-01), Niklas
patent: 3356851 (1967-12-01), Carlson
patent: 3872309 (1975-03-01), De Belder et al.
patent: 4195228 (1980-03-01), Rabatin
patent: 4256965 (1981-03-01), Lucian
patent: 4318001 (1982-03-01), Degenhardt

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