氧离子轰击引起钽的L壳层X射线发射截面的研究
L-shell X-ray emission cross section of tantalum by 20—45 MeV O~(5+) bombardment
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摘要: 在北京原子能研究院串联加速器上,利用20—45MeV的O5+轰击Ta靶,研究靶的L壳层X射线.给出了Ta的L壳层各亚壳层Ll,Lα,Lβ和LγX射线发射截面的比值,并且与ECPSSR理论计算做了比较.结果表明,在误差范围内比值σ(Ll)/σ(Lα)、σ(Lβ)/σ(Lα)和σ(Lγ)/σ(Lα)的实验结果与理论计算符合得较好.Abstract: With 20—45 MeV O5+ ion bombardment we investigate L-shell X-ray emission processes on Ta film at HI-13 tandem accelerator in the Chinese Institute of Atomic Energy (CIAE). The ratios of X-ray emission cross section: σ(Lβ)/σ(Lα),σ(Lγ)/σ(Lα), and σ(Ll)/σ(Lα) are obtained. The results are compared with the predictions by the ECPSSR theory. Reasonable agreement between the ECPSSR theory and the experiment is obtained.
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