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 ›› 1998, Vol. 9 ›› Issue (3): 138

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Measurements of fast-neutron capture cross sections for 159Tb and 169Tm

Chen Jin-Xiang1, Shi Zhao-Min1, Tang Guo-You1, Zhang Guo-Hui1, Lu Han-Lin2, Han Xiao-Gang2, Huang Xiao-Long2   

  1. 1 Institute of Heavy Ion Physics, Peking Unwersity, Beying 100871;
    2 China Institute of Atomic Energy, Beijing 102413
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Chen Jin-Xiang, Shi Zhao-Min, Tang Guo-You, Zhang Guo-Hui, Lu Han-Lin, Han Xiao-Gang, Huang Xiao-Long. Measurements of fast-neutron capture cross sections for 159Tb and 169Tm.Nuclear Science and Techniques, 1998, 9(3): 138

Abstract: The neutron capture cross sections for 159Tb and 169Tm relative to the 197Au (n, γ) 198Au reaction are measured at neutron energies of 0.57 , 1.10 and 1.60 MeV by using the activation method. The activities of the products are measured with a high resolution HPGe detector gamma-ray spectrometer. The errors of the present work are 5~6% for Tb, 6~7% for Tm. The recommended data in energy region of 0.4~3.0 MeV are given as compared with other data published previously.

Key words: 159Tb, 169Tm, 197Au, Neutron capture cross sections, Activation method