20—50 MeV O^(5+)离子引起Au的L壳层X射线产生截面研究

Study of the L-subshell X-ray production cross sections of Au by 20—50 MeV O^(5+) bombardments

在北京13 MV串列加速器上利用20—50MeVO5+离子研究Au的L壳层X射线产生截面.实验结果表明σ(Ll)/σ(Lα),σ(Lβ)/σ(Lα)和σ(Lγ)/σ(Lα)与ECPSSR理论计算结果符合比较好.在实验中由于较高的能量,在能量点存在能移现象.

The experiments were performed at HI-13 tandem accelerator at the Chinese Institute of Atomic Energy（CIAE）,in which the L-shell X-ray relative production cross section was measured for solid targets Au bombarded by 20—50 MeV O^5＋ions.The ratios of Au L-subshell production cross sections σ（Lβ）/σ（Lα）,σ（Lγ）/σ（Lα）,σ（Ll）/σ（Lα） have been calculated according to the experimental data.The results are compared with the predictions of the ECPSSR theory.Reasonable agreement between theory and experiment was obtained.