Nuclear gauge

Radiant energy – Radiant energy generation and sources – With container for radioactive source and radiation...

Patent

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Details

2504961, G21F 502

Patent

active

053151240

ABSTRACT:
A nuclear gauge for making measurements of traveling webs in continuous sheet-making processes includes an enclosure, an encapsulated nuclear source, and a wheel-like member mounted in the enclosure means for carrying the encapsulated nuclear source between two angularly-displaced positions. The first of the angularly-displaced positions is the position where the encapsulated nuclear source makes measurements of a web that travels past the gauge and the second position is the location where the encapsulated nuclear source faces a sidewall of the enclosure means at a location remote from the first position. The nuclear gauge also has an aperture which is formed through the enclosure for providing a window through which the encapsuled nuclear source, when located in the first position, can emit radiation onto a web that travels past the window.

REFERENCES:
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patent: 2772361 (1956-11-01), Hiestand
patent: 2889464 (1959-06-01), Ruehle
patent: 2891168 (1959-06-01), Goertz et al.
patent: 2984748 (1961-05-01), Converse et al.
patent: 3085157 (1963-04-01), Ginsburgh et al.
patent: 4284887 (1981-08-01), Kusumoto et al.
patent: 4516256 (1985-05-01), Wapperom

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