中国物理B ›› 1994, Vol. 3 ›› Issue (2): 81-91.doi: 10.1088/1004-423X/3/2/001

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Z1- AND Z2-OSCILLATIONS OF ELECTRONIC STOPPING CROSS SECTIONS OBTAINED BY SHELL-WISE CALCULATION AND HARMONIC-OSCILLATOR MODEL

杨洪1, 孙秀芳1, 夏曰源2, 谭春雨2   

  1. (1)Department of Computer Science, Shandong University, Jinan 250100, China; (2)Department of Physics, Shandong University, Jinan 250100, China
  • 收稿日期:1993-01-05 出版日期:1994-02-20 发布日期:1994-02-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China.

Z1- AND Z2-OSCILLATIONS OF ELECTRONIC STOPPING CROSS SECTIONS OBTAINED BY SHELL-WISE CALCULATION AND HARMONIC-OSCILLATOR MODEL

XIA YUE-YUAN (夏曰源)a, TAN CHUN-YU (谭春雨)a, YANG HONG (杨洪)b, SUN XIU-FANG (孙秀芳)b   

  1. a Department of Physics, Shandong University, Jinan 250100, China; b Department of Computer Science, Shandong University, Jinan 250100, China
  • Received:1993-01-05 Online:1994-02-20 Published:1994-02-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China.

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摘要： A shell-wise calculation method and a quantal harmonic-oscillator model have been used to calculate the electronic stopping cross sections for heavy ions colliding with atoms or penetrating matter. The electronic energy loss is given in an impact parameter formalism. In order to generalize the theoretical models, which pertain to the cese of point charge interacting with matter, to the case for heavy ions, an effective stopping charge hased on the modified BK theory is used by way of simple scaling in the calculations. The comparisons between the calculated results and the experimental data demonstrate a favourable evidence to justify the theoretical models.

Abstract: A shell-wise calculation method and a quantal harmonic-oscillator model have been used to calculate the electronic stopping cross sections for heavy ions colliding with atoms or penetrating matter. The electronic energy loss is given in an impact parameter formalism. In order to generalize the theoretical models, which pertain to the cese of point charge interacting with matter, to the case for heavy ions, an effective stopping charge hased on the modified BK theory is used by way of simple scaling in the calculations. The comparisons between the calculated results and the experimental data demonstrate a favourable evidence to justify the theoretical models.

中图分类号:  (Energy loss and stopping power)

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