摘要
用电子冷却储存环提供的C6+脉冲高能离子束轰击Au靶,测量到Au的Lα和LβX射线辐射谱,分析结果表明,在高能离子束的轰击下,Au原子的Lα的X射线产生截面大于Lβ的,两个X射线产生截面随炮弹的动能增加而增加.本文分别用PWBA理论和ECPSSR理论计算了此实验条件下的X射线产生截面,结果比实验获得的结果大,初步分析了其中的原因.
As the C6+ion beam pulses,provided by the Heavy Ion Research Facility in Lanzhou-Cooling Storage Rings,impact on Au taget surface,the Lα-and Lβ-X spectra of Au atom are measured. Results show that the production cross section of Lαis larger than that of Lβ. The production cross sections increase with the kinetic energies of the projectiles. The PWBA and ECPSSR theoretical models are compared with the experimental resulms. The significant difference between experimental data and theoretical models was discussed.
引文
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