Studies of K-shell x-ray energy shifts induced by MeV/u heavy ions  

作　　者：宋张勇 杨治虎 邵剑雄 崔莹 张红强 阮芳芳 杜鹃 高志民 于得洋 陈熙萌 蔡晓红 

机构地区：[1]Institute of Modern Physics, the Chinese Academy of Sciences [2]School of Nuclear Science and Technology, Lanzhou University

出　　处：《Chinese Physics B》2009年第4期1443-1450,共8页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No 10774149)

摘　　要：This paper reports that the K x-ray spectra of the thin target 4TAg, 4sCd, 49In and 50Sn were measured by an HPGe semi-conductor detector in collisions with 84.5 MeV 6C4＋ ions. Our experiment revealed the Kα x-ray energy shifts were not obvious and the Kβ1 x-ray energy shifts were about 90-110 eV. The simple model of Burch et al has been previously used to calculate the K x-ray energy shifts due to an additional vacancy in 2p orbit. The present work extends the model of Burch to calculate the x-ray energy shifts of multiple ionized atoms induced by heavy ions with kinetic energy of MeV/u. In addition to our experimental results, many other experimental results are compared with the calculated values by using the model.This paper reports that the K x-ray spectra of the thin target 4TAg, 4sCd, 49In and 50Sn were measured by an HPGe semi-conductor detector in collisions with 84.5 MeV 6C4＋ ions. Our experiment revealed the Kα x-ray energy shifts were not obvious and the Kβ1 x-ray energy shifts were about 90-110 eV. The simple model of Burch et al has been previously used to calculate the K x-ray energy shifts due to an additional vacancy in 2p orbit. The present work extends the model of Burch to calculate the x-ray energy shifts of multiple ionized atoms induced by heavy ions with kinetic energy of MeV/u. In addition to our experimental results, many other experimental results are compared with the calculated values by using the model.

关 键 词：K-shell x-ray energy shifts heavy ion collisions multiple ionization 

分 类 号：O571.6[理学—粒子物理与原子核物理] TB302.5[理学—物理]