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Title: Radiation attenuation gauge with magnetically coupled source

Patent ·
OSTI ID:863111

A radiaton attenuation gauge for measuring thickness and density of a material comprises, in combination, a source of gamma radiation contained within a housing comprising magnetic or ferromagnetic material, and a means for measuring the intensity of gamma radiation. The measuring means has an aperture and magnetic means disposed adjacent to the aperture for attracting and holding the housed source in position before the aperture. The material to be measured is disposed between the source and the measuring means.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
DOE Contract Number:
W-7405-ENG-26
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Number(s):
US 4095106
OSTI ID:
863111
Country of Publication:
United States
Language:
English