ANALYTICAL MODEL FOR THE CALCULATION OF FISSION RATE

  • Based on an analysis of Kramers' stationary solution, by means of the analytical solution of the Fokker-Planck equation in a harmonical potential, we propose a simple model for the calculation of the fission rates. As an example we compute the time evolution of the fission widths of Pu240 for various finite friction values and compoared our results with the corresponding ones based on Kramers' formula for a large and small frictions and the transition state method.
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  • [1] H. A. Kramers, Physica, 7 (1940), 284.[2] S. Chandrasekhar, Rev. Mod. Phys., 15 (1943), I.[3] P. Grange, H. C. Pauli and H. A. Weidenmuller, Phys. Lett., 88B (1979), 9; Z. Physik, A296(1980), 107.[4] K.Pomorski and H. Hofrnann, J. Physique, 42 (1981), 381.[5] J. R. Nix and A. Sierk, to be published.[6] F. Scheuter and H. Hofrnann, to be published.[7] H. Hofrnann and J. R. Nix, to be published.[8] 吴锡真等, “高能物理与核物理”待发表.[9] 吴锡真, 卓益忠, “高能物理与核物理”, 4(1980),113.[10] 卓益忠, J. R. Nix 的私人通讯[11] P. B. Visscher, Phys. Rev., B Vol. 13(1976),3272; Vol. 14(1976),347.
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FENG Ren-Fa, ZHUO Yi-Zhong and LI Jun-Qing. ANALYTICAL MODEL FOR THE CALCULATION OF FISSION RATE[J]. Chinese Physics C, 1984, 8(4): 453-460.
FENG Ren-Fa, ZHUO Yi-Zhong and LI Jun-Qing. ANALYTICAL MODEL FOR THE CALCULATION OF FISSION RATE[J]. Chinese Physics C, 1984, 8(4): 453-460. shu
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Received: 1900-01-01
Revised: 1900-01-01
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ANALYTICAL MODEL FOR THE CALCULATION OF FISSION RATE

    Corresponding author: FENG Ren-Fa,

Abstract: Based on an analysis of Kramers' stationary solution, by means of the analytical solution of the Fokker-Planck equation in a harmonical potential, we propose a simple model for the calculation of the fission rates. As an example we compute the time evolution of the fission widths of Pu240 for various finite friction values and compoared our results with the corresponding ones based on Kramers' formula for a large and small frictions and the transition state method.

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