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Chinese Physics C> 2011, Vol. 35> Issue(1) : 35-39 DOI: 10.1088/1674-1137/35/1/008

Theoretical analysis of double-differential neutron emission cross sections for n+56Fe reactions at incident energies of 7-13 MeV

  • The double-differential neutron emission cross sections for n+56Fe reactions at incident energies of 7-13 MeV at different angles are calculated by the UNF (abbreviation for unified, 2009 Version) code, which is based on the unified Hauser-Feshbach and exciton model. The results indicate that the higher the incident energies, the better the results, although there are some discrepancies between the calculated results and the measured data for natural iron. These discrepancies are analyzed in detail in this paper. In addition, the calculated results are also compared with the evaluated results of ENDFB Ⅶ.0 and JEFF-3.1.1 near the angle of 90° at incident energies of 8.17 and 11.5 MeV, respectively.
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    [1] Matsuyama S, Soda D, Baba M et al. Measurements of Double-Differential Neutron Emission Cross Sections of Fe and Nb for 11.5 MeV Neutrons. In: Masayoshi K, Tokio F ed. Proceedings of the 1994 Symposium on Nuclear Data. Tokai: Japan Atomic Energy Research Institute. 1995. 1572 Tuli J K. Nuclear Wallet Cards. New York: National Nuclear Data Center, 2005. 113 Duijvestijn M C, Koning A J. Annals of Nuclear Energy, 2006, 33: 11964 HAN Yin-Lu, ZHANG Yue, GUO Hai-Rui. Nucl. Sci. Eng, 2009, 161: 15 Beyerle A G, Gould C, Seagondollar W et al. Double Differential Neutron Scattering Cross Sections for Fe, Cu, Ni and Pb Between 8 and 12 MeV. In: Fowler J L, Johnson C H, Bowman C D ed. Proceedings of the International Conference. Knoxville: US Department of Commerce National Bureau of Standards. 1980. 1396 Biryukov N S, Zhuravlev B V, Kornilov N V et al. Yad.Fiz., 1974, 19(6): 11907 Soda D, Matsuyama S, Masanobu I et al. Report of Japan Atomic Energy Research Institute, 1995, Report No. JAERI-M-96-0088 QI Bu-Jia, TANG Hong-Qing, ZHOU Zu-Ying et al. Atomic Energy Science and Technology, 1999, 33(6): 497 (in Chinese)9 RUAN Xi-Chao, HUANG Han-Xiong, JIANG Jing et al. Atomic Energy Science and Technology, 2009, 43(9): 793 (in Chinese)10 Smith A B. Nuclear Physics A, 1996, 605: 26911 HAN Yin-Lu, ZHANG Yue, GOU Hai-Rui et al. Annals of Nuclear Energy, 2008, 35: 203112 Gul K, Anwar M, Ahmad M et al. Physical Review C, 1985, 31: 7413 Arthur E D, Young P G. Report of Los Alamos Scientific Laborator, 1980, Report No. LA-8626-MS (ENDF-304)14 ZHANG Jing-Shang. The Statistical Theory for Neutron- Induced Light Reaction. Beijing: Science Press, 2009. 1(in Chinese)15 SUN Xiao-Jun, QUWen-Jing, DUAN Jun-Feng et al. Physical Review C, 2008, 78: 054610-116 DUAN Jun-Feng, ZHANG Jing-Shang, WU Hai-Cheng et al. Physical Review C, 2009, 80: 064612-117 QU Wen-Jing, LIU Ji-Feng, SUN Xiao-Jun. Chinese Physics C, 2009, 33(1): 3118 ZHANG Jing-Shang. Nucl. Sci. Eng, 1993, 114: 5519 ZHANG Jing-Shang, HAN Yin-Lu, CAO Li-Gang. Nucl. Sci. Eng, 1999, 133: 21820 ZHANG Jing-Shang. Nucl. Sci. Eng, 2002, 142: 20721 ZHANG Jing-Shang, YANG Xian-Jun. Zeitschrift fur Physik A-Atomic Nuclei, 1988, 329: 6922 Chadwick M B, Oblozinsky P. Physcal Revew C, 1991, 44: R174023 SHEN Qing-Biao. Nucl. Sci. Eng, 2002, 141: 7824 Kunz P D. Distorted Wave Code DWUCK4. University of Colorada, Boulder, Colorada, 1987

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HOU Pei-You, SUN Xiao-Jun, YU Cheng-Gang and LU Xiao. Theoretical analysis of double-differential neutron emission cross sections for n+56Fe reactions at incident energies of 7-13 MeV[J]. Chinese Physics C, 2011, 35(1): 35-39. doi: 10.1088/1674-1137/35/1/008
HOU Pei-You, SUN Xiao-Jun, YU Cheng-Gang and LU Xiao. Theoretical analysis of double-differential neutron emission cross sections for n+56Fe reactions at incident energies of 7-13 MeV[J]. Chinese Physics C, 2011, 35(1): 35-39.  doi: 10.1088/1674-1137/35/1/008 shu
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Received: 2010-04-06
Revised: 2010-03-22
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Theoretical analysis of double-differential neutron emission cross sections for n+56Fe reactions at incident energies of 7-13 MeV

  • Received Date: 2010-04-06
  • Accepted Date: 2010-03-22
  • Available Online: 2011-01-05

Abstract: The double-differential neutron emission cross sections for n+56Fe reactions at incident energies of 7-13 MeV at different angles are calculated by the UNF (abbreviation for unified, 2009 Version) code, which is based on the unified Hauser-Feshbach and exciton model. The results indicate that the higher the incident energies, the better the results, although there are some discrepancies between the calculated results and the measured data for natural iron. These discrepancies are analyzed in detail in this paper. In addition, the calculated results are also compared with the evaluated results of ENDFB Ⅶ.0 and JEFF-3.1.1 near the angle of 90° at incident energies of 8.17 and 11.5 MeV, respectively.

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