An Empirical Formula of Atomic K-Shell Ionization Cross Sections by Electron Impact
TANG Chang-Huan1,2, AN Zhu2, FAN Xiao-Qiang3, LUO Zheng-Ming2
1Laser Fusion Research Center, CAEP, Mianyang 621900
2Institute of Nuclear Science and Technology, Sichuan University, Key Laboratory for Radiation Physics and Technology of Education Ministry of China, Chengdu 610064
3Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900
An Empirical Formula of Atomic K-Shell Ionization Cross Sections by Electron Impact
1Laser Fusion Research Center, CAEP, Mianyang 621900
2Institute of Nuclear Science and Technology, Sichuan University, Key Laboratory for Radiation Physics and Technology of Education Ministry of China, Chengdu 610064
3Institute of Nuclear Physics and Chemistry, CAEP, Mianyang 621900
Abstract： An empirical formula is proposed to describe the K-shell
ionization cross sections by electron impact over a wide range of atomic numbers and overvoltages U (the ratio between the electron incident energy and the binding energy of the electrons in the K-shell). The study is based on the analysis of existing experimental data of K-shell ionization cross sections. The expression shows the results in good agreement with the data for Z < 6 atoms as well as for 6 ≤ Z ≤ 79.
TANG Chang-Huan;AN Zhu;FAN Xiao-Qiang;LUO Zheng-Ming. An Empirical Formula of Atomic K-Shell Ionization Cross Sections by Electron Impact[J]. 中国物理快报, 2001, 18(8): 1053-1055.
TANG Chang-Huan, AN Zhu, FAN Xiao-Qiang, LUO Zheng-Ming. An Empirical Formula of Atomic K-Shell Ionization Cross Sections by Electron Impact. Chin. Phys. Lett., 2001, 18(8): 1053-1055.
2001, Vol. 18 
