COINCIDENCES BETWEEN ELECTRONS AND TARGET IONS TO IDENTIFY CAPTURE CHANNELS IN COLLISIONS OF MULTIPLY CHARGED IONS ON GAS TARGETS

被引：38
|
作者：
POSTHUMUS, JH
MORGENSTERN, R
机构：
[1] Kernfysisch Versneller Instituut, Rijksuniversiteit Groningen, 9747 AA Groningen
来源：
PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 09期
关键词：
D O I：
10.1103/PhysRevLett.68.1315
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have investigated multielectron capture processes in collisions of Ar9+ on Ar by measuring the resulting Auger electrons in coincidence with charge-state-analyzed target ions. In this way it was possible to reconstruct partial electron energy spectra, each corresponding to a particular number of initially captured electrons. The spectra are compared with predictions of the extended classical over-barrier model. Strong evidence is found that Auger cascades play an important role for the deexcitation of the highly excited ions, formed by multielectron capture.
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页码：1315 / 1318
页数：4
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