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Volume 34 Issue 3
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QIAN Jing, GE Zhigang, LIU Tingjin, LU Hanlin, ZHOU Zuying, RUAN Xichao, CHEN Guochang, WANG Zhaohui, NIE Yangbo, WU Haicheng. Research on Discrepancy of Inelastic Cross Section for 56Fe in Fast Neutron Range[J]. Nuclear Physics Review, 2017, 34(3): 514-519. doi: 10.11804/NuclPhysRev.34.03.514
Citation: QIAN Jing, GE Zhigang, LIU Tingjin, LU Hanlin, ZHOU Zuying, RUAN Xichao, CHEN Guochang, WANG Zhaohui, NIE Yangbo, WU Haicheng. Research on Discrepancy of Inelastic Cross Section for 56Fe in Fast Neutron Range[J]. Nuclear Physics Review, 2017, 34(3): 514-519. doi: 10.11804/NuclPhysRev.34.03.514
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Research on Discrepancy of Inelastic Cross Section for 56Fe in Fast Neutron Range

doi: 10.11804/NuclPhysRev.34.03.514

  • China Institute of Atomic Energy, Beijing 102413, China

Funds:  National Natural Science Foundation of China (11505294)
  • Received Date: 2016-12-08
  • Rev Recd Date: 2017-05-25
  • Publish Date: 2017-07-18
  • Knowledge about the inelastic scattering cross section of 56Fe is very important in neutron transportation calculation. However there are great discrepancies not only between experimental data but also between evaluated data. More detail analysis was performed for inelastic scattering cross section in the fast range up to 20 MeV where there are significant differences among the main evaluated libraries, mainly caused by the different inelastic scattering cross section measurements. The large discrepancies on 56Fe(n, n1'γ) cross section which could fill the neutron energy blank of the 56Fe(n,inl) were clarified and were converted to the inelastic scattering cross section of 56Fe. And the high-quality results were evaluated by using the unitarity constrain among total cross section, noelastic reaction and other reactions. The integral experiment result indicates that the new evaluated result of inelastic cross section brings greater improvement than that of CENDL-3.1.
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    [3] CHADWICK M B, HERMAN M, OBLOZINSKY P, et al. Nuclear Data Sheets, 2011, 112, 2887.
    [4] KONING A J, FORREST R, KELLETT M, et al. JEFF Report 21, 2006, NEA No.6190.
    [5] KONING A J, DEAN C, FISCHER U, et al. JEFF Report 23, 2013, NEA No.7079.
    [6] SHIBATA K, IWAMOTO O, NAKAGAWA T, et al. J. Nucl Sci Tech, 2011, 48:1.
    [7] GE Z G, ZHAO Z X, XIA H H, et al. J Korean Phys Soc, 2011, 59(2):1052.
    [8] IAEA http://www-nds.iaea.org/EXFOR.
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    [11] LISOWSKI P W, BOWMAN C D, RUSSELL G J, et al. Nucl Sci Eng, 1990, 106:208.
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Research on Discrepancy of Inelastic Cross Section for 56Fe in Fast Neutron Range

doi: 10.11804/NuclPhysRev.34.03.514
  • China Institute of Atomic Energy, Beijing 102413, China
Funds:  National Natural Science Foundation of China (11505294)
  • Received Date: 2016-12-08
  • Rev Recd Date: 2017-05-25
  • Publish Date: 2017-07-18

Abstract: Knowledge about the inelastic scattering cross section of 56Fe is very important in neutron transportation calculation. However there are great discrepancies not only between experimental data but also between evaluated data. More detail analysis was performed for inelastic scattering cross section in the fast range up to 20 MeV where there are significant differences among the main evaluated libraries, mainly caused by the different inelastic scattering cross section measurements. The large discrepancies on 56Fe(n, n1'γ) cross section which could fill the neutron energy blank of the 56Fe(n,inl) were clarified and were converted to the inelastic scattering cross section of 56Fe. And the high-quality results were evaluated by using the unitarity constrain among total cross section, noelastic reaction and other reactions. The integral experiment result indicates that the new evaluated result of inelastic cross section brings greater improvement than that of CENDL-3.1.

QIAN Jing, GE Zhigang, LIU Tingjin, LU Hanlin, ZHOU Zuying, RUAN Xichao, CHEN Guochang, WANG Zhaohui, NIE Yangbo, WU Haicheng. Research on Discrepancy of Inelastic Cross Section for 56Fe in Fast Neutron Range[J]. Nuclear Physics Review, 2017, 34(3): 514-519. doi: 10.11804/NuclPhysRev.34.03.514
Citation: QIAN Jing, GE Zhigang, LIU Tingjin, LU Hanlin, ZHOU Zuying, RUAN Xichao, CHEN Guochang, WANG Zhaohui, NIE Yangbo, WU Haicheng. Research on Discrepancy of Inelastic Cross Section for 56Fe in Fast Neutron Range[J]. Nuclear Physics Review, 2017, 34(3): 514-519. doi: 10.11804/NuclPhysRev.34.03.514
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