空心原子的K-x射线谱

The x-ray spectra of hollow atoms

报道了利用兰州重离子加速器国家实验室ECR离子源首次引出的全裸Ar离子和类氢、类氦、类锂Ar离子与Be固体表面相互作用形成的空心原子x射线实验测量结果 .结果发现 ,同样条件下 ,由于K壳层电子的剥离 ,Ar的K_x射线单离子发射产额增加了 5个量级 ,约为 3 6× 10 - 3每原子 ;而当L壳层存在电子时 。

The x-ray spectra of hollow atoms in the interaction of highly charged argon ions with beryllium solid surface are reported. The interaction ions, provided by the electron cyclotron resonance (ECR) ion source in the National Laboratory of the Heavy Ion Research Facility in Lanzhou( HIRFL), include bare argon ions, which are produced by the ion source for the first time, and hydrogen-like, helium-like and lithium-like argon ions. We found that the K-shell x-ray yield of single particles in the interaction of hydrogen-like argon ions is 3.6 x 10(-3), which is 5 orders more than that of helium-like argon ions, and the K-shell x-ray cannot be measured in the interaction of lithium-like argon ions with beryllium surface.