Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2015, Vol. 26 ›› Issue (6): 060501 doi: 10.13538/j.1001-8042/nst.26.060501

• NUCLEAR PHYSICS AND INTERDISCIPLINARY RESEARCH • Previous Articles     Next Articles

Measurement of 232Th(n,2n)231Th reaction cross-sections at neutron energies of 14.1 MeV and 14.8 MeV using neutron activation method

LAN Chang-Lin 1, XIE Bao-Lin , 1 ZHANG Kai ,2 PENG Meng ,1 FANG Kai-Hong 1   

  1. 1School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
    2Department of Nuclear Physics, China Institute of Atomic Energy, Beijing 102413, China
  • Contact: LAN Chang-Lin E-mail:lanchl@lzu.edu.cn
  • Supported by:

    Supported by National Natural Science Foundation of China (No. 11205076)

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LAN Chang-Lin, XIE Bao-Lin, ZHANG Kai, PENG Meng, FANG Kai-Hong . Measurement of 232Th(n,2n)231Th reaction cross-sections at neutron energies of 14.1 MeV and 14.8 MeV using neutron activation method.Nuclear Science and Techniques, 2015, 26(6): 060501     doi: 10.13538/j.1001-8042/nst.26.060501

Abstract:

In this study, the activation cross-sections were measured for 232Th(n,2n)231Th reactions at neutron energies of 14.1 and 14.8 MeV, which were produced by a neutron generator through a T(d,n)4He reaction. Induced gamma-ray activities were measured using a low background gamma ray spectrometer equipped with a high resolution HPGe detector. In the cross-section calculations, corrections were made regarding the effects of gamma-ray attenuation, dead-time, fluctuation of the neutron flux, and low energy neutrons. The measured cross-sections were compared with the literature data, evaluation data (ENDF-B/VII.1, JENDL-4.0 and CENDL-3.1), and the results of the model calculation (TALYS1.6).

Key words: 232Th(n,2n)231Th reaction, Cross-section, Neutron activation method