摘要
测量了动能为2.0 MeV的高电荷态离子152Eu20+入射Au表面产生的Au的Mζ,Mα和Mδ特征X射线和Eu的Mα-X射线。对X射线产生的微观机制进行了初步分析,并通过半经典两体碰撞近似,估算了Eu20+与Au作用产生的Au的M-X射线和Eu的M-X射线的动能阈值。此结果对高电荷态离子与固体表面相互作用的动力学过程的研究以及在辐射能量转换效率研究中如何选取合适的弹靶组合具有重要的参考价值。
It is measured that the characteristic X-ray spectra of Mζ, M~ and Mδ of Au and the characteristic X-ray spectra of Mχ of Eu produced by the interaction of highly charged ions of 152^Eu^20＋ with kinetic energy 2.0 MeV on Au surface. The micro-mechanism of X-ray excitation is preliminary analyzed, The kinetic energy threshold of M-X ray of Au and M-X ray of Eu emitted by Eu^20＋ with Au is estimated by semiclassical approximation theory of binary collision. The threshold has important referenced value in the study on dynamics of the interaction of highly charged ions with solid surface and on how to choose better target and projectile combination in the conversion efficiency of radiation energy.
出处
《原子核物理评论》
CAS
CSCD
北大核心
2013年第1期63-66,共4页
Nuclear Physics Review
基金
国家自然科学基金资助项目(11075135)
陕西省自然科学基础研究项目(2010JM1012)
陕西省教育厅科研计划项目(2010JK895)
咸阳师范学院专项科研基金(09XSYK106)~~
关键词
高电荷态离子
X射线
动能阈值
highly charged ion
X-ray
kinetic energy threshold
