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
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.
引用
收藏
页码:1315 / 1318
页数:4
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