^(129)Xe^(20+)入射Au表面X射线产额与离子动能的相关性

The relativity of X-ray yield with kinetic energies by the interaction of ^(129)Xe^(20+) ions with solid Au surface

报道了在兰州重离子加速器国家实验室320kV高电荷态离子综合研究平台上,用2.4～6.0MeV动能的高电荷态离子^(129)Xe^(20+)轰击Au表面,探测X射线谱的实验结果.当离子动能较大时,相互作用不仅激发出了Au的M—X射线,还激发出了Xe的L—X射线,且X射线产额随入射离子动能的增加总体呈增加趋势.对碰撞导致X射线产生的微观机制进行了初步分析.

The experimental results of the X-ray spectrum by the interaction of ^129Xe^20＋ ions of 2.4-6. 0MeV kinetic energies with solid Au surface has been detected, to do the experiment with the 320 kV research platform for highly charged ions of the national laboratory of the Heavy Ion Research Facility in Lanzhou. The experimental results showed that, as ion＇s kinetic energies are larger the incident ions not only excited Au M X-ray but also excited Xe L X-ray. The X-ray yield show increasing trend with the ion＇s kinetic energies. The micro-mechanism of X-ray excitation by the collision has been preliminary analyzed.