ELECTRON-CAPTURE BY DOUBLY-CHARGED IONS FROM LASER-EXCITED ALKALI ATOMS .2. HE2+-LI-ASTERISK(2P) COLLISIONS

被引：18

作者：

GIELER, M ^{[1
]}

AUMAYR, F ^{[1
]}

WEBER, M ^{[1
]}

WINTER, HP ^{[1
]}

SCHWEINZER, J ^{[1
]}

机构：

[1] MAX PLANCK INST PLASMA PHYS,W-8046 GARCHING,GERMANY

来源：

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

关键词：

D O I：

10.1088/0953-4075/26/14/015

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Single electron capture in collisions of slow (keV amu-1) He-2+ ions with aligned Li*(2p) atoms has been investigated by means of translational energy spectroscopy. A single mode cw dye laser beam has been modified by using an electro-optical modulator in order to pump both hyperfine ground states of Li simultaneously, thus maximizing the fraction of excited target atoms. Cross sections for electron capture from Li(2s), Li*(2pSIGMA) and Li*(2pPI) initial states into He+ (n = 3, 4, 5) final states have been determined for different impact energies and compared with 68-state atomic orbital (AO) close coupling calculations.

引用

页码：2153 / 2164

页数：12

共 29 条

[1]

AUMAYR F, 1985, ANN PHYS-LEIPZIG, V42, P228, DOI 10.1002/andp.19854970304

[2] TOKAMAK EDGE PLASMA DENSITIES MEASURED BY MEANS OF ACTIVE LITHIUM BEAM DIAGNOSTICS [J].