Device for gauging thickness of refractory lining

Details Device for gauging thickness of refractory lining Device for gauging thickness of refractory lining

1979-05-01

1981-05-26

Willis, Davis L.

Radiant energy

Invisible radiant energy responsive electric signalling

With means to inspect passive solid objects

250390, 250392, G01N 2300

Patent

active

042700515

ABSTRACT:
A device for gauging the thickness of refractory lining, comprising an electric pulse measuring unit connected to a lining thickness pulse transducer. The latter is mounted on that portion of the lining which is subjected to thickness measurements, and comprises a fast neutron source, a protective shield, and a thermal and epithermal neutron detector; these are successively arranged in a sealed housing. The thermal and epithermal neutron detector contains a plurality of thermal neutron counters with the number thereof being determined by the activity of the fast neutron source, and a neutron moderator intended to expand the energy interval of neutrons counted by the thermal neutron counters.

REFERENCES:
patent: 2967937 (1961-01-01), McKay
patent: 3315076 (1967-04-01), Jordan
patent: 3524062 (1970-08-01), Rocoplan et al.
Textbook by Smolyak and Dekhtyareva, Controls of Refractory Lining of Metallurgical Plants, 1977.
Les Applications des Troceurs Radioactifs dans l'Utilisation des Refractaires.

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