Radiant energy – Geological testing or irradiation
Patent
1978-10-03
1980-05-06
Smith, Alfred E.
Radiant energy
Geological testing or irradiation
250270, G01V 500
Patent
active
042019125
ABSTRACT:
A device for detecting fissionable material such as uranium in low concentrations by interrogating with photoneutrons at energy levels below 500 keV, and typically about 26 keV. Induced fast neutrons having energies above 500 keV by the interrogated fissionable material are detected by a liquid scintillator or recoil proportional counter which is sensitive to the induced fast neutrons. Since the induced fast neutrons are proportional to the concentration of fissionable material, detection of induced fast neutrons indicate concentration of the fissionable material.
REFERENCES:
patent: 2726338 (1955-12-01), Goodman
patent: 2842695 (1958-07-01), Goodman
patent: 2920204 (1960-01-01), Youmans
patent: 3707631 (1972-12-01), Untermyer
patent: 3828189 (1974-08-01), Givens
Baker Michael P.
Evans Michael L.
Menlove Howard O.
Cochran II William W.
Gaetjens Paul D.
Howell Janice A.
Lupo R. V.
Smith Alfred E.
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