X-ray emission from 424-MeV/u C ions impacting on selected target*Project supported by the National Basic Research Program of China (Grant No. 2010CB832902), the National Natural Science Foundation of China (Grant Nos. 11505248, 11375034, U1532263, 11275241, 11205225, 11105192, and 11275238), and the Scientific Research Program of Education Bureau of Shaanxi Province, China (Grant No. 15JK1793). (10th January 2016)

• Record Type: Journal Article
• Authors: Zhou 周, Xian-Ming 贤明; Cheng 程, Rui 锐; Lei 雷, Yu 瑜; Sun 孙, Yuan-Bo 渊博; Wang 王, Yu-Yu 瑜玉; Wang 王, Xing 兴; Xu 徐, Ge 戈; Mei 梅, Ce-Xiang 策香; Zhang 张, Xiao-An 小安; Chen 陈, Xi-Meng 熙萌; Xiao 肖, Guo-Qing 国青; Zhao 赵, Yong-Tao 永涛
• Is Part Of: Chinese physics B. Volume 25:Number 2(2016)
• Publication Date: 2016-01-10
• Subjects: 34.80.Dp -- 32.30.Rj -- 32.80.Aa; high energy heavy ions -- ion–atom collisions -- x-ray emission; Physics -- Periodicals; Physics; Periodicals; 530.05
• DOI: 10.1088/1674-1056/25/2/023402
• Languages: English
• ISSNs: 1674-1056

Abstract

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 K β /K α 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.