Please use this identifier to cite or link to this item:
https://hdl.handle.net/11681/5861
Title: | Gamma-ray spectra of resonance neutron irradiated earth materials |
Authors: | United States Army Natick Development Center Murrmann, R. P. Winters, R. W. Martin, Thomas G. |
Keywords: | Clay minerals Soils 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. |
Rights: | Approved for public release; distribution is unlimited. |
URI: | http://hdl.handle.net/11681/5861 |
Appears in Collections: | Research Report |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
CRREL-Research-Report-289.pdf | 1.21 MB | Adobe PDF | View/Open |