1976•University of North Texas Digital Library (University of North Texas)Open access
Gamma-ray isotopic measurements for assay of plutonium fuels
F.X. Haas, J.F. Lemming
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Abstract
The data presented summarize experience in obtaining plutonium and americium isotopic data using two systems: a 70 cc Ge(Li) system with 1.8 keV resolution at 1332 keV for acquisition of spectra up to 700 keV gamma-ray energy and a 1 cc planar system with 600 eV resolution at 122 keV for the acquisition of spectra up to 220 keV. Plutonium samples include ash samples with plutonium-240 concentrations of 9 to 20 percent; plutonium metal samples 6 percent--plutonium-240; ZPPR fuel pins; and various waste categories of 6 percent--plutonium-240 material. Nondestructive isotopic ratios obtained by gamma-ray spectroscopy are compared to chemical data obtained from these samples.
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