中国物理B ›› 2016, Vol. 25 ›› Issue (2): 23402-023402.doi: 10.1088/1674-1056/25/2/023402
• SPECIAL TOPIC—Soft matter and biological physics (Review) • 上一篇 下一篇
Xian-Ming Zhou(周贤明), Rui Cheng(程锐), Yu Lei(雷瑜), Yuan-Bo Sun(孙渊博), Yu-Yu Wang(王瑜玉), Xing Wang(王兴), Ge Xu(徐戈), Ce-Xiang Mei(梅策香), Xiao-An Zhang(张小安), Xi-Meng Chen(陈熙萌), Guo-Qing Xiao(肖国青), Yong-Tao Zhao(赵永涛)
Xian-Ming Zhou(周贤明)1,2,3, Rui Cheng(程锐)1, Yu Lei(雷瑜)1, Yuan-Bo Sun(孙渊博)1,3, Yu-Yu Wang(王瑜玉)1, Xing Wang(王兴)1,5, Ge Xu(徐戈)1,3, Ce-Xiang Mei(梅策香)4, Xiao-An Zhang(张小安)4, Xi-Meng Chen(陈熙萌)2, Guo-Qing Xiao(肖国青)1, Yong-Tao Zhao(赵永涛)1,5
摘要:
The K-shell x-rays of Ti, V, Fe, Co, Ni, Cu, and Zn induced by 424-MeV/u C6+ ion impact are measured. It is found that the K x-ray shifts to the high energy side and the intensity ratio of K/K 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.
中图分类号: (Atomic excitation and ionization)