Chin. Phys. B ›› 2014, Vol. 23 ›› Issue (1): 13401-013401.doi: 10.1088/1674-1056/23/1/013401

• ATOMIC AND MOLECULAR PHYSICS • 上一篇    下一篇

Mαβ X-ray production cross sections of Pb and Bi by 9–40 keV electron impact

吴英a b, 王冠鹰a, 穆强a, 赵强a   

  1. a School of Nuclear Science and Engineering, North China Electric Power University, Beijing 102206, China;
    b Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
  • 收稿日期:2013-01-08 修回日期:2013-07-04 出版日期:2013-11-12 发布日期:2013-11-12
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant No. 11275071).

Mαβ X-ray production cross sections of Pb and Bi by 9–40 keV electron impact

Wu Ying (吴英)a b, Wang Guan-Ying (王冠鹰)a, Mu Qiang (穆强)a, Zhao Qiang (赵强)a   

  1. a School of Nuclear Science and Engineering, North China Electric Power University, Beijing 102206, China;
    b Key Laboratory of Radiation Physics and Technology of Ministry of Education, Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
  • Received:2013-01-08 Revised:2013-07-04 Online:2013-11-12 Published:2013-11-12
  • Contact: Wu Ying E-mail:w_y@ncepu.edu.cn
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant No. 11275071).

摘要: The experimental data of Mαβ X-ray production cross sections for Pb and Bi by 9–40 keV electron impact have been given. Thin films with thick carbon substrates are used in the experiment. The effects of target structure on the Mαβ X-ray production cross sections are corrected by using the Monte Carlo method. The corrected experimental data are compared with calculated cross sections in terms of the distorted-wave Born approximation (DWBA) theory. The measured Mαβ X-ray production cross sections for Pb and Bi are lower than the DWBA calculations. The atomic relaxation parameters used in comparing the DWBA values with experimental results affect the degree of difference.

关键词: electron impact, M-shell X-ray production cross sections, Monte Carlo method

Abstract: The experimental data of Mαβ X-ray production cross sections for Pb and Bi by 9–40 keV electron impact have been given. Thin films with thick carbon substrates are used in the experiment. The effects of target structure on the Mαβ X-ray production cross sections are corrected by using the Monte Carlo method. The corrected experimental data are compared with calculated cross sections in terms of the distorted-wave Born approximation (DWBA) theory. The measured Mαβ X-ray production cross sections for Pb and Bi are lower than the DWBA calculations. The atomic relaxation parameters used in comparing the DWBA values with experimental results affect the degree of difference.

Key words: electron impact, M-shell X-ray production cross sections, Monte Carlo method

中图分类号:  (Atomic excitation and ionization)

  • 34.80.Dp
02.70.Uu (Applications of Monte Carlo methods)