MEASUREMENT OF L-SHELL IONIZATION CROSS SECTIONS FOR NIOBIUM BY ELECTRON IMPACT
Peng Xiu-feng (彭秀峰), He Fu-qing (何福庆), Long Xian-guan (龙先灌), An Zhu (安竹), Luo Zheng-ming (罗正明)
Key Laboratory for Radiation Physics and Technology, Ministry of Education, Chengdu 610064, China; Institute of Nuclear Science and Technology, Sichuan University, Chengdu 610064, China
Abstract L-shell ionization cross sections of Nb by electron impact in the energy range from 3 to 40 keV have been determined with a Si(Li) X-ray detector. Influence of reflected electrons from backing on the measurement was corrected using an electron transport model. The experimental results are compared with theoretical calculations of Gryzinski and McGuire.
Received: 05 April 2000
Revised: 20 May 2000
Accepted manuscript online:
PACS:
34.80.Dp
(Atomic excitation and ionization)
Fund: Project supported by the National Nuclear Industry Science Foundation of China (Grant No. Y7197CY404).
Cite this article:
Peng Xiu-feng (彭秀峰), He Fu-qing (何福庆), Long Xian-guan (龙先灌), An Zhu (安竹), Luo Zheng-ming (罗正明) MEASUREMENT OF L-SHELL IONIZATION CROSS SECTIONS FOR NIOBIUM BY ELECTRON IMPACT 2001 Chinese Physics 10 31
Ionization for Hf- and W-L-shell by electron impact Yang Dai-Lun (杨代伦), Luo Xiao-Bing (罗小兵), Fu Yu-Chuan (傅玉川), He Fu-Qing (何福庆), Long Xian-Guan (龙先灌), Peng Xiu-Feng (彭秀峰), Luo Zheng-Ming (罗正明). Chin. Phys. B, 2004, 13(5): 670-676.
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.