ELECTRON-CAPTURE BY DOUBLY-CHARGED IONS FROM LASER-EXCITED ALKALI ATOMS .1. HE2+-NA-ASTERISK(3P) COLLISIONS

被引：31

作者：

GIELER, M

AUMAYR, F

SCHWEINZER, J

KOPPENSTEINER, W

HUSINSKY, W

WINTER, HP

LOZHKIN, K

HANSEN, JP

机构：

[1] AF IOFFE PHYS TECH INST,ST PETERSBURG 194021,RUSSIA

[2] FYS INST,N-5000 BERGEN,NORWAY

来源：

JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS | 1993年 / 26卷 / 14期

关键词：

D O I：

10.1088/0953-4075/26/14/014

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

State-selective single electron capture in slow (0.5-3 keV amu-1) collisions of He2+ with laser-excited Na*(3p) atoms has been studied by means of translational energy spectroscopy and the results compared with 64-state atomic orbital (AO) close coupling calculations, considering cross sections for electron capture into He+ (n = 3, 4, 5) final states for different impact energies. In addition, alignment effects have been studied by controlling the polarization of the exciting laser light. The experimentally observed dependence on Na*(3pSIGMA) and Na*(3pPI) initial state preparation is quantitatively reproduced by the AO calculations.

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页码：2137 / 2151

页数：15

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