Induced nuclear reactions: processes – systems – and elements – Nuclear transmutation – By neutron bombardment
Patent
1984-02-22
1986-11-11
Cawgialosi, Salvatore
Induced nuclear reactions: processes, systems, and elements
Nuclear transmutation
By neutron bombardment
376245, 250370, G21C 1700
Patent
active
046222006
ABSTRACT:
A non-destructive method for determination of neutron exposure and constituent concentrations in an object, such as reactor pressure vessel, is based on the observation of characteristic gamma-rays emitted by activation products in the object by using a unique continuous gamma-ray spectrometer. The spectrometer views the object through appropriate collimators to determine the absolute emission rate of these characteristic gamma-rays, thereby ascertaining the absolute activity of given activation products in the object. These data can then be used to deduce the spatial and angular dependence of neutron exposure or the spatial constituent concentration at regions of interest within the object.
REFERENCES:
patent: 2998550 (1961-08-01), Collins et al.
patent: 3043955 (1962-07-01), Friedland et al.
patent: 3225196 (1965-12-01), Gigon et al.
patent: 3311770 (1967-03-01), Boyd
patent: 3483376 (1969-12-01), Locke et al.
patent: 3496357 (1970-02-01), Weinzierl et al.
patent: 3527944 (1970-09-01), Kraner
patent: 3612869 (1971-10-01), Baum et al.
patent: 3717765 (1973-02-01), Hiller
patent: 3786253 (1974-01-01), Haffner et al.
patent: 4090072 (1978-05-01), Michaelis et al.
patent: 4152596 (1979-05-01), Marshall, III
patent: 4203037 (1980-05-01), Gur et al.
patent: 4345153 (1982-08-01), Yin
patent: 4483817 (1984-11-01), Evans et al.
Gold, "Estimates of High Energy Gamma and Neutron Flux from Continuous Gamma Ray Spectrometry", LWR Pressure Vessel Irradiation Surveillance Quarterly Progress Report (9/78), NUREG/CR-0551, pp. HEDL-37-HEDL-48.
Gold, "Compton Recoil Gamma Ray Spectroscopy", Nuc. Instr, Meth, vol. 85, pp. 173-194 (1970).
Gold et al, EUR6813, vol. II, pp. 1160-1170 (1980) "Reactor Gamma Ray Spectroscopy: Status".
Kaiser et al, "Gamma Ray Spectrometry", LWR Pressure Vessel Surveillance Dosimetry Improvement Program, NUREG/CR-1861, pp. 5.2-1-5.2-34 (1981).
Gold et al, "Gamma Ray Spectrometry in LWR'S", 4th Int. ASTM-Euratom Symposium on Reactor Dosimetry, NBS. Wash, D.C. (3182).
McNeece et al, HEDL-7285 (1983).
McElroy et al, Sec 2.4.1 NUREG/CR-2805, vol. 3 (1983).
Gold Raymond
McElroy William N.
Cawgialosi Salvatore
Hightower Judson R.
Nypaver Edward W.
Southworth III Robert
The United States of America as represented by the United States
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