The characteristic spectral lines of target atoms in the impact of^(40)Ar^(q+)ions on metal surfaces  

作　　者：ZHANG Xiao’an1,2,ZHAO Yongtao1,2,LI Fuli1,YANG Zhihu2,XIAO Guoqing2 & ZHAN Wenlong2 1.Department of Applied Physics,Xi’an Jiaotong University,Xi’an 710049,China 2.Institute of Modern Physics,Chinese Academy of Sciences,Lanzhou 730000,China 

出　　处：《Science China(Physics,Mechanics & Astronomy)》2004年第6期729-736,共8页中国科学：物理学、力学、天文学（英文版）

基　　金：This work was supported by the National Natural Science Foundation of China(Grant Nos.10134010,19804012,10274058 and 10274088).

摘　　要：We report the measured results of the 200 nm—1000 nm characteristic spectral lines of target atoms when highly charged ions40Ar q+(6≤q≤14) with the same kinetic energy and40Ar6+ with different kinetic energies are incident upon Al, Ti, Ni, Ta and Au surfaces, respectively. The results for129Xe6+,129Xe10+ and129Xe15+ with the same kinetic energy (150 keV) incident upon a Ta surface are also reported. These results show that when the projectile and target are properly selected (40Ar12+ impinges on Al,129Xe6+ impinges on Ta), the spectral intensity of characteristic spectral lines of the target atom is effectively enhanced, and is not strongly dependent on the kinetic energy of the incident ions.We report the measured results of the 200 nm—1000 nm characteristic spectral lines of target atoms when highly charged ions 40Arq (6≤q≤14) with the same + kinetic energy and Ar6+ with different kinetic energies are incident upon Al, Ti, Ni, Ta and 40 Au surfaces, respectively. The results for 129 Xe6+, 129Xe10+ and 129Xe15+ with the same kinetic energy (150 keV) incident upon a Ta surface are also reported. These results show that when the projectile and target are properly selected (40Ar12+ impinges on Al, 129Xe6+ impinges on Ta), the spectral intensity of characteristic spectral lines of the target atom is effectively enhanced, and is not strongly dependent on the kinetic energy of the incident ions.

关 键 词：highly CHARGED ion  HOLLOW atom  CHARACTERISTIC spectrum  spectral intensity. 

分 类 号：O562[理学—原子与分子物理]