THE AVAILABILITY OF THE L2L3M4 COSTER-KRONIG TRANSITION AT Z = 93

被引：3
|
作者：
JOHNSTON, PN
机构：
[1] Department of Applied Physics, Royal Melbourne Institute of Technology, Melbourne, 3001 Vic.
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1991年 / 56-7卷
关键词：
D O I：
10.1016/0168-583X(91)95974-I
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
The availability of L2L3M4 at Z = 93 is of interest as a test of relativistic calculation of Coster-Kronig electron energies. In addition, the low energy photon intensity standard, Am-241, decays to Np-237 producing Np L X-rays. This decay is complex and atomic branching processes play an important role in the final balancing of the decay scheme. In the present work, using proton ionisation of U-234 and Np-237 targets, the systematic behaviour of ionisation cross-sections and atomic branching ratios indicate that L2L3M4 is energetically available; this is contrary to relativistic theory.
引用
收藏
页码：70 / 73
页数：4
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