中国物理B ›› 1993, Vol. 2 ›› Issue (7): 490-499.doi: 10.1088/1004-423X/2/7/002

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INVESTIGATION ON THE MULTIDIMENSIONAL NUCLEAR FISSION DYNAMICS

包景东1, 卓益忠2, 吴锡真2   

  1. (1)Beijing Institute of Meteorology, Beijing 100081, China; (2)Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China
  • 收稿日期:1992-09-04 出版日期:1993-07-20 发布日期:1993-07-20
  • 基金资助:
    Supported by the National Natural Science Foundation of China .

INVESTIGATION ON THE MULTIDIMENSIONAL NUCLEAR FISSION DYNAMICS

BAO JING-DONG (包景东)a, ZHUO YI-ZHONG (卓益忠)b, WU XI-ZHEN (吴锡真)b   

  1. a Beijing Institute of Meteorology, Beijing 100081, China; b Institute of Atomic Energy, P.O. Box 275, Beijing 102413, China
  • Received:1992-09-04 Online:1993-07-20 Published:1993-07-20
  • Supported by:
    Supported by the National Natural Science Foundation of China .

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摘要： The expression of multidimensional fission rate with quantum effect at finite temperature has been obtained by menus of the approach of path integral expressed as Fourier series. The covariant form of the fission diffusion equations and the quantities related to it under general coordinate transformations in phase space are studied. The differences between two or three-dimensional and one-dimensional cases are analyzed carefully by using the {c,h,α} parametrization. The realistic Langevin calculations of two-dimensional transient rate are compared with the one-dimensional case and generalized Kramers rate formula.

Abstract: The expression of multidimensional fission rate with quantum effect at finite temperature has been obtained by menus of the approach of path integral expressed as Fourier series. The covariant form of the fission diffusion equations and the quantities related to it under general coordinate transformations in phase space are studied. The differences between two or three-dimensional and one-dimensional cases are analyzed carefully by using the {c, h, $\alpha$} parametrization. The realistic Langevin calculations of two-dimensional transient rate are compared with the one-dimensional case and generalized Kramers rate formula.

中图分类号:  (Fission reactions)

  • 25.85.-w
21.65.-f (Nuclear matter)