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Chinese Physics C> 2010, Vol. 34> Issue(7) : 953-957 DOI: 10.1088/1674-1137/34/7/005

Research on the prompt neutron multiplicity of fission fragments for 235U(n,f)

  • According to some experimental and evaluated data, the total excitation energy partitioning way between both of the fission fragments was given with a semi-empirical method. With the calculated energy partitioning way, the prompt neutron multiplicity as a function of fragment mass, ν(A), for neutron-induced fission of 235U at En=0.0253 eV, 3 MeV, and 5 MeV was calculated. The results are checked with the total average prompt neutron multiplicities ν and compared with the experimental and evaluated data.

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    [1] . Lemaire S, Talou P, Kawano T et al. Phys. Rev. C, 2005,72: 0246012. www.nds.org/exfor/, Experimental Nuclear Reaction Data(EXFOR). Database (2009), Entry Numbers: 40017,40235, 218343. Nishio K, Nakagome Y, Yamamoto H, Kimura I. Nucl.Rhys. A, 1998, 632: 5404. www-nds.iaea.org/exfor/, Experimental Nuclear ReactionData (EXFOR) Database (2009), entry nuber 22464, 210955. Pleasonton F, Ferguson R L, Schmitt H. Phys. Rev. C,1972, 6: 10236. Madland D C, Nix J R. Nucl. Sci. Eng., 1982, 81: 2137. Duijvestijn M C, Koning A J. Phys. Rev. C, 2001, 64:0146078. LIU Ting-Jin, SUN Zheng-Jun, SHU Neng-Chuan. Chin.Phys. C, 2008, 32: 556-5609. Madland D G. Nucl. Rhys. A, 2006, 772: 113-13710. LU Xi-Ting et al. Nuclaer Physics. Beijing: Atomic EnergyPress, 2000. 273-32211. www-nds.iaea.org/exfor/, Experimental Nuclear ReactionData (EXFOR) Database (2009), entry nubers: 12326,14051, 21252, 40132, 40871, 4137812. www.nndc.bnl.org/endf/, Evaluated Nuclear Data File(ENDF) (2009), target=235U, projectile=n, MT=456,MF=1.

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CHEN Yong-Jing, LIU Ting-Jin and SHU Neng-Chuan. Research on the prompt neutron multiplicity of fission fragments for 235U(n,f)[J]. Chinese Physics C, 2010, 34(7): 953-957. doi: 10.1088/1674-1137/34/7/005
CHEN Yong-Jing, LIU Ting-Jin and SHU Neng-Chuan. Research on the prompt neutron multiplicity of fission fragments for 235U(n,f)[J]. Chinese Physics C, 2010, 34(7): 953-957.  doi: 10.1088/1674-1137/34/7/005 shu
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Received: 2009-08-10
Revised: 2009-12-17
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Research on the prompt neutron multiplicity of fission fragments for 235U(n,f)

    Corresponding author: CHEN Yong-Jing,
  • Received Date: 2009-08-10
  • Accepted Date: 2009-12-17
  • Available Online: 2010-07-05

Abstract: 

According to some experimental and evaluated data, the total excitation energy partitioning way between both of the fission fragments was given with a semi-empirical method. With the calculated energy partitioning way, the prompt neutron multiplicity as a function of fragment mass, ν(A), for neutron-induced fission of 235U at En=0.0253 eV, 3 MeV, and 5 MeV was calculated. The results are checked with the total average prompt neutron multiplicities ν and compared with the experimental and evaluated data.

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