Author:
Zhou Xianming,Wei Jing,Cheng Rui,Zhang Yanning,Chen Yanhong,Liang Changhui,Zhang Xiaoan,Zhao Yongtao
Abstract
AbstractThe L-shell x-ray emissions of gold are investigated for the bombardment of high energy C6+ ions in the high energy region of 154.3–423.9 MeV/u. Due to the multiple ionization of outer-shell electrons at the movement of L x-ray emission, the blue shift of the experimental x-ray energy and an enhancement of the relative intensity ratios of Lι, Lβ–Lα x rays are observed. Using the improved thin target formula and considering the effect of multiple ionization on atomic parameters, the L-subshell x-ray production cross sections are extracted from the counts and compared with the theoretical estimations of BEA, PWBA and ECPSSR. It is found that the relative corrections of ECPSSR on PWBA can be ignored in the present experimental energy region. The calculations of PWBA and ECPSSR are almost identical and both are larger than the experimental results. The BEA is in better agreement with the experiment as a whole.
Funder
National Key R&D Program of China
National Natural Science Foundation of China
Scientific research plan of science and Technology Department of Shaanxi Province
Scientific Research Program Funded by Shaanxi Provincial Education Department
Acadimic Leader of Xianyang Normal University, China
the Key Cultivation Project of Xianyang Normal University, China
Publisher
Springer Science and Business Media LLC