IVNAA investigation of factors affecting the background in the measurement of nitrogen |
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| Authors: | Haiying Wang Ch M Waana |
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| Institution: | (1) Department of Physics, University of Toronto, Toronto, Ontario, (Canada);(2) Present address: Department of Basic Courses, Huazhong, Agricultural University, 430 070 Wuhan, Hubei province, The People's Republic of China |
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| Abstract: | A study of the major factors which affect the NaI crystal background in the presence of neutron sources in the region of 10.8 MeV (energy of the neutron capture gamma-rays from nitrogen) by neutron capture gamma analysis is described. The neutron flux is provided by two collimated 370 GBq (10 Ci) Pu–Be sources. Results indicate that there are two major factors affecting the background in the 10.8 MeV region, namely random coincidence counting (contributing about 65%) and Gaussian Spreading (contributing about 25%). |
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