The K-shell Auger decay of atomic oxygen

被引:71
作者
Stolte, WC [1 ]
Lu, Y [1 ]
Samson, JAR [1 ]
Hemmers, O [1 ]
Hansen, DL [1 ]
Whitfield, SB [1 ]
Wang, H [1 ]
Glans, P [1 ]
Lindle, DW [1 ]
机构
[1] UNIV NEVADA,DEPT CHEM,LAS VEGAS,NV 89154
关键词
D O I
10.1088/0953-4075/30/20/012
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Relative photoionization cross sections for O+ and O2+ produced by the Auger decay of a 1s hole in atomic oxygen were measured by using synchrotron radiation between 525 and 553 eV. Energies and quantum defects of the members of the two Rydberg series converging to [1s]2s(2)2p(4)((4)p) and [1s]2s(2)2p(4)(P-2) ionization thresholds were determined. In addition, the P-2 and P-4 ionization thresholds were calculated from the two Rydberg series. The 182 meV resolution of the monochromator allowed a detailed study over both thresholds revealing evidence for post-collision interaction and allowing a comparison of the ionization continuum above both P-2 and P-4 thresholds with that of the ionization continuum above the Ar L2-3 edges. This comparison indicates that the lifetimes of the Ar(2p) and O(1s) hole states are approximately the same.
引用
收藏
页码:4489 / 4497
页数:9
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