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 in | Chinese physics B Vol. 25; no. 2; pp. 143 - 147 |
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Main Author | |
Format | Journal Article |
Language | English |
Published |
01.02.2016
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ISSN | 1674-1056 2058-3834 1741-4199 |
DOI | 10.1088/1674-1056/25/2/023402 |
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Abstract | 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. |
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AbstractList | 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. The K-shell x-rays of Ti, V, Fe, Co, Ni, Cu, and Zn induced by 424-MeV/u C super(6+) ion impact are measured. It is found that the K x-ray shifts to the high energy side and the intensity ratio of K[beta]/K[alpha] 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 multiple-ionization 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. |
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 |
AuthorAffiliation | Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China University of Chinese Academy of Sciences, Beijing 100049, China Normal College of Xianyang, Xianyang 712000, China School of Science, Xi' an Jiaotong University, Xi' an 710049, China |
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Cites_doi | 10.1016/0092-640X(79)90036-6 10.1016/j.nima.2009.03.087 10.1103/PhysRevLett.86.436 10.1088/0029-5515/16/3/003 10.1103/PhysRevA.22.1896 10.7498/aps.62.173401 10.1103/PhysRevA.26.2696 10.1063/1.872861 10.1016/S0168-583X(99)00916-7 10.1016/j.physleta.2012.02.032 10.1016/j.nimb.2013.01.041 10.1103/PhysRev.138.A305 10.1103/PhysRev.138.A336 10.1103/PhysRevA.8.1374 10.1103/PhysRevA.80.062902 10.1103/PhysRev.138.A322 10.1109/TPS.2009.2022012 |
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Notes | 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 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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References | 11 12 Zhou X M (6) 2013; 22 13 14 15 16 17 18 19 Wang X (8) 2012; 61 Mei C X (7) 2013; 22 2 3 4 5 Kidder R E (1) 1976; 16 9 20 10 |
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Snippet | 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... The K-shell x-rays of Ti, V, Fe, Co, Ni, Cu, and Zn induced by 424-MeV/u C super(6+) ion impact are measured. It is found that the K x-ray shifts to the high... |
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SubjectTerms | 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 |
Title | X-ray emission from 424-MeV/u C ions impacting on selected target |
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