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Volume 34 Issue 3
Jul.  2017
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Article Navigation >  Nuclear Physics Review  > 2017  >  34(3): 351-356

MA Nanru, LIN Chengjian, JIA Huiming, XU Xinxing, YANG Feng, YANG Lei, SUN Lijie, WANG Dongxi, LIU Zuhua, ZHANG Huanqiao. Measurement of (n, f) and (n, xn) Cross Sections of Actinides with the Surrogate Reaction Method[J]. Nuclear Physics Review, 2017, 34(3): 351-356. doi: 10.11804/NuclPhysRev.34.03.351
Citation: MA Nanru, LIN Chengjian, JIA Huiming, XU Xinxing, YANG Feng, YANG Lei, SUN Lijie, WANG Dongxi, LIU Zuhua, ZHANG Huanqiao. Measurement of (n, f) and (n, xn) Cross Sections of Actinides with the Surrogate Reaction Method[J]. Nuclear Physics Review, 2017, 34(3): 351-356. doi: 10.11804/NuclPhysRev.34.03.351
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Measurement of (n, f) and (n, xn) Cross Sections of Actinides with the Surrogate Reaction Method

doi: 10.11804/NuclPhysRev.34.03.351

  • China Institute of Atomic Energy, Beijing 102413, China

Funds:  National Key Basic Research Development Program of China(2013CB834404); National Natural Science Foundation of China(11375268, 11475263, U1432127, U1432246, 11505293, 11635015)
More Information
  • Corresponding author: 10.11804/NuclPhysRev.34.03.351
  • Received Date: 2016-11-20
  • Rev Recd Date: 2017-03-30
  • Publish Date: 2017-07-18
  • There are always difficulties in the direct measurement of reactions induced by neutron, in order to obtain the neutron induced nuclear reaction data which are extremely important for nuclear power development, the surrogate reaction method, which uses charged particles instead of neutron, was proposed. The existing surrogate reaction method generally chooses peripheral reaction as the surrogate reaction, such as inelastic scattering excitation or transfer reaction. As a result, the angular momentum involved is always far larger than the neutron induced reaction, which causes difficulties in the theoretical calculation. Because of this, we proposed to use light-ion capture reaction as the surrogate reaction, the compound nuclei spin is similar with that of the neutron induced reaction, so that the difficulties in spin correction can be effectively avoided. Based on this idea, the 239Pu(n, f) and (n, 2n) reaction cross sections were successfully extracted using 236U(α,f) and (α,2n) reactions as the surrogate reaction. The results coincide well with the data of ENDFB7 within the error range, which shows that the surrogate reaction method has its own superiority, and it can be applied in the measurement of nuclear data.
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    [5] ESCHER J, DIETRICH F S. LLNL Tech Rep, 2005 no:UCRL-TR-212509-Draft (unpublished).
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    [7] RAYNAL J. Technical Report No. SMR-9/8, IAEA.
    [8] RAYNAL J. ICTP International Seminar Course (IAEA, ICTP, Trieste, Italy), 1972:281
    [9] HAGINOA K, ROWLEYB N, KRUPPAC A T. Computer Physics Communications, 1999, 123(1-3):143.doi: 10.1016/S0010-4655(99)00243-X
    [10] BOHR A. Proc Int Conf, Peaceful Uses At Energy, Geneva, United Nations, New York, 1956, 2:151.
    [11] (fusion-evaporation code) http://lise.nscl.msu.edu/lise.html.
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Measurement of (n, f) and (n, xn) Cross Sections of Actinides with the Surrogate Reaction Method

doi: 10.11804/NuclPhysRev.34.03.351
  • China Institute of Atomic Energy, Beijing 102413, China
Funds:  National Key Basic Research Development Program of China(2013CB834404); National Natural Science Foundation of China(11375268, 11475263, U1432127, U1432246, 11505293, 11635015)
    Corresponding author: 10.11804/NuclPhysRev.34.03.351
  • Received Date: 2016-11-20
  • Rev Recd Date: 2017-03-30
  • Publish Date: 2017-07-18

Abstract: There are always difficulties in the direct measurement of reactions induced by neutron, in order to obtain the neutron induced nuclear reaction data which are extremely important for nuclear power development, the surrogate reaction method, which uses charged particles instead of neutron, was proposed. The existing surrogate reaction method generally chooses peripheral reaction as the surrogate reaction, such as inelastic scattering excitation or transfer reaction. As a result, the angular momentum involved is always far larger than the neutron induced reaction, which causes difficulties in the theoretical calculation. Because of this, we proposed to use light-ion capture reaction as the surrogate reaction, the compound nuclei spin is similar with that of the neutron induced reaction, so that the difficulties in spin correction can be effectively avoided. Based on this idea, the 239Pu(n, f) and (n, 2n) reaction cross sections were successfully extracted using 236U(α,f) and (α,2n) reactions as the surrogate reaction. The results coincide well with the data of ENDFB7 within the error range, which shows that the surrogate reaction method has its own superiority, and it can be applied in the measurement of nuclear data.

MA Nanru, LIN Chengjian, JIA Huiming, XU Xinxing, YANG Feng, YANG Lei, SUN Lijie, WANG Dongxi, LIU Zuhua, ZHANG Huanqiao. Measurement of (n, f) and (n, xn) Cross Sections of Actinides with the Surrogate Reaction Method[J]. Nuclear Physics Review, 2017, 34(3): 351-356. doi: 10.11804/NuclPhysRev.34.03.351
Citation: MA Nanru, LIN Chengjian, JIA Huiming, XU Xinxing, YANG Feng, YANG Lei, SUN Lijie, WANG Dongxi, LIU Zuhua, ZHANG Huanqiao. Measurement of (n, f) and (n, xn) Cross Sections of Actinides with the Surrogate Reaction Method[J]. Nuclear Physics Review, 2017, 34(3): 351-356. doi: 10.11804/NuclPhysRev.34.03.351
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