Reproduction of neutron fluence by unfolding method with an NE213 scintillator
Reproduction of neutron fluence by unfolding method with an NE213 scintillator
复制标题
使用 NE213 闪烁体通过展开方法再现中子注量
DOI:
10.1016/j.nima.2018.07.079
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Endo Satoru
中科院分区:
文献类型:
--
作者:
Kajimoto Tsuyoshi;Sanami Toshiya;Nakao Noriaki;Froeschl Robert;Roesler Stefan;Iliopoulou Elpida;Infantino Angelo;Brugger Markus;Tanaka Kenichi;Endo Satoru
The reproduction of neutron fluence derived by the unfolding method was confirmed by simulating an experiment at Cern High energy AcceleRator Mixed field facility (CHARM). Fluences on an NE213 scintillator located at positions surrounded with shields were calculated using PHITS. A neutron light output spectrum and response matrix were calculated according to the calculated fluence. Furthermore, response matrices with simple distributions of neutron incident position and direction on the scintillator were also prepared because a response matrix with guessed distributions is used in measurements. In spite of using response matrices with different distributions, the unfolded fluence agreed with each other, unless the distribution was focused on a position. The agreement of the fluences enables us to measure the fluence at various positions even though the distributions are experimentally unknown. Finally, experimental fluences were obtained under the same conditions, and were compared with the simulation results.
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1999
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1983
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1968
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