Determination of neutron capture cross sections of 232Th at 14.1 MeV and 14.8 MeV using the neutron activation method

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Chang-Lin Lan, Yi Zhang, Tao Lv, Bao-Lin Xie, Meng Peng, Ze-En Yao, Jin-Gen Chen and Xiang-Zhong Kong. Determination of neutron capture cross sections of 232Th at 14.1 MeV and 14.8 MeV using the neutron activation method[J]. Chinese Physics C, 2017, 41(4): 044002. doi: 10.1088/1674-1137/41/4/044002
Chang-Lin Lan, Yi Zhang, Tao Lv, Bao-Lin Xie, Meng Peng, Ze-En Yao, Jin-Gen Chen and Xiang-Zhong Kong. Determination of neutron capture cross sections of 232Th at 14.1 MeV and 14.8 MeV using the neutron activation method[J]. Chinese Physics C, 2017, 41(4): 044002.  doi: 10.1088/1674-1137/41/4/044002 shu
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Received: 2016-08-03
Revised: 2016-10-22
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    Supported by Chinese TMSR Strategic Pioneer Science and Technology Project-The Th-U Fuel Physics Term (XDA02010100) and National Natural Science Foundation of China (11205076, 21327801)

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Determination of neutron capture cross sections of 232Th at 14.1 MeV and 14.8 MeV using the neutron activation method

    Corresponding author: Chang-Lin Lan,
  • 1.  School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
  • 2.  Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, China
Fund Project:  Supported by Chinese TMSR Strategic Pioneer Science and Technology Project-The Th-U Fuel Physics Term (XDA02010100) and National Natural Science Foundation of China (11205076, 21327801)

Abstract: The 232Th(n,γ)233Th neutron capture reaction cross sections were measured at average neutron energies of 14.1 MeV and 14.8 MeV using the activation method. The neutron flux was determined using the monitor reaction 27Al(n,α)24Na. The induced gamma-ray activities were measured using a low background gamma ray spectrometer equipped with a high resolution HPGe detector. The experimentally determined cross sections were compared with the data in the literature, and the evaluated data of ENDF/B-VⅡ.1, JENDL-4.0u+, and CENDL-3.1. The excitation functions of the 232Th(n,γ)233Th reaction were also calculated theoretically using the TALYS1.6 computer code.

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