摘要
测量了动能为350—600 keV和1.8—3.9 MeV的129Xe26+入射Au表面产生的X射线谱.结果表明,350—600 keV的Xe26+仅激发出了Au的Mα特征X射线,而1.8—3.9 MeV的Xe26+可激发出Au的Mζ,Mα,Mγ和Mδ特征X射线.分析了X射线强度和产额比与入射离子动能的关系,并估计了Xe26+激发Xe的L-X射线的动能阈值.
The characteristic X-ray spectra produced by the impact of 129Xe26+ with kinetic energies from 350 to 600 keV and from 1.8 to 3.9 MeV on Au surface are measured. It is found that 129Xe26+ with kinetic energies from 350 to 600 keV can excite only the characteristic X-ray spectra of Mαof Au, but 129Xe26+ with kinetic energies from 1.8 to 3.9 MeV can excite the characteristic X-ray spectra of Mζ, Mα, Mγand Mδ. The relation between the characteristic X-ray intensity, the ratio of X-ray yield and the ion kinetic energy is analyzed. The kinetic energy threshold of L-X-ray of Xe emitted by Xe26+ is estimated.
出处
《物理学报》
SCIE
EI
CAS
CSCD
北大核心
2014年第16期135-140,共6页
Acta Physica Sinica
基金
国家自然科学基金(批准号:11075135)
陕西省自然科学基金(批准号:2010JM1012)
陕西省教育厅科研计划(批准号:14JK1803)资助的课题~~
关键词
高电荷态离子
X射线
产额
动能阈值
highly charged ions
X-ray
yield
kinetic energy threshold