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Title: Gamma-ray spectra of resonance neutron irradiated earth materials
Authors: U.S. Army Natick Laboratories.
Murrmann, R. P.
Winters, R. W.
Martin, T. G.
Keywords: Clay minerals
Neutron activation analysis
Trace elements
Nuclear activation analysis
Trace element content
Soil composition
Soil chemistry
Gamma-ray spectra
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Research report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 289.
Description: Research Report
Abstract: Clay mineral and soil samples were subjected to neutron activation analysis in order to identify and measure the abundances of trace elements having radionuclides with long half-lives. After exposure of cadmium-shielded samples to neutrons for a period of five days, the gamma radiation associated with the decay of the resulting radionuclides was observed using a high resolution Ge(Li) detector. Trace elements identified without prior chemical separation using the gross gamma-ray spectra included Fe, Zn, Ti, Ni, Co, Cr, Sr, Ba, Ca, La, Eu, Tb, Hf, Ta, Th, and U. It should be possible to determine quantitatively the amount of each of these elements. This is a considerable improvement over the number of elements determined in soils previously by activation analysis without destructive chemical treatments.
Appears in Collections:CRREL Research Report

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