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Published on: July 27, 2018
Au L-shell x-ray emission induced by 154.3-423.9 MeV/u C6+ ions
Xianming Zhou1,2, Jing Wei3, Rui Cheng4
1Ion Beam and Optical Physics Joint Laboratory of Xianyang Normal University and IMP, CAS, Xianyang Normal University, Wenlin Rd. 01, Xianyang, 712000, China. xmzhou19860208@163.com.
Abstract:
The 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.
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