X-ray emission from 424-MeV/u C ions impacting on selected target

The K-shell x-rays of Ti, V, Fe, Co, Ni, Cu, and Zn induced by 424-MeV/u C~（6＋） ion impact are measured. It is found that the K x-ray shifts to the high energy side and the intensity ratio of Kβ/Kα is larger than the atomic data, owing to the L-shell multiple-ionization. The x-ray production cross s...

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Published inChinese physics B Vol. 25; no. 2; pp. 143 - 147
Main Author 周贤明 程锐 雷瑜 孙渊博 王瑜玉 王兴 徐戈 梅策香 张小安 陈熙萌 肖国青 赵永涛
Format Journal Article
LanguageEnglish
Published 01.02.2016
Subjects
Approximation
Cross sections
Encounters
Mathematical analysis
Mathematical models
Nuclear power generation
Plane waves
X-rays
X射线转换
X射线辐射
伏特
原子K壳层
原子数据
定态微扰论
电子
离子对
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ISSN1674-1056
2058-3834
1741-4199
DOI10.1088/1674-1056/25/2/023402

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Summary:The K-shell x-rays of Ti, V, Fe, Co, Ni, Cu, and Zn induced by 424-MeV/u C~（6＋） ion impact are measured. It is found that the K x-ray shifts to the high energy side and the intensity ratio of Kβ/Kα is larger than the atomic data, owing to the L-shell multiple-ionization. The x-ray production cross sections are deduced from the experimental counts and compared with the binary encounter approximation（BEA）, plane wave approximation（PWBA） and energy-loss Coulomb-repulsion perturbed-stationary-state relativistic（ECPSSR） theoretical predictions. The BEA model with considering the multipleionization fluorescence yield is in better consistence with the experimental results. In addition, the cross section as a function of target atomic K-shell binding energy is presented.
Bibliography:Xian-Ming Zhou, Rui Cheng, Yu Lei, Yuan-Bo Sun, Yu-Yu Wang, Xing Wang， Ge Xu, Ce-Xiang Mei, Xiao-An Zhang, Xi-Meng Chen, Guo-Qing Xiao, and Yong-Tao Zhao 1 Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China 2School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China 3 University of Chinese Academy of Sciences, Beijing 100049, China 4Normal College of Xianyang, Xianyang 712000, China 5School of Science, Xi＇ an Jiaotong University, Xi＇ an 710049, China
11-5639/O4
The K-shell x-rays of Ti, V, Fe, Co, Ni, Cu, and Zn induced by 424-MeV/u C~（6＋） ion impact are measured. It is found that the K x-ray shifts to the high energy side and the intensity ratio of Kβ/Kα is larger than the atomic data, owing to the L-shell multiple-ionization. The x-ray production cross sections are deduced from the experimental counts and compared with the binary encounter approximation（BEA）, plane wave approximation（PWBA） and energy-loss Coulomb-repulsion perturbed-stationary-state relativistic（ECPSSR） theoretical predictions. The BEA model with considering the multipleionization fluorescence yield is in better consistence with the experimental results. In addition, the cross section as a function of target atomic K-shell binding energy is presented.
high energy heavy ions, ion-atom collisions, x-ray emission
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ISSN:1674-1056
2058-3834
1741-4199
DOI:10.1088/1674-1056/25/2/023402