Luminescence in collisions of low-energy ions with graphite and Al2O3

被引：0
|
作者：
A. Lawicki
A. Lawicka
K. Kreft
机构：
[1] Institute of Experimental Physics,
[2] University of Gdańsk,undefined
来源：
The European Physical Journal Special Topics | 2007年 / 144卷
关键词：
European Physical Journal Special Topic; Graphite Surface; Continuum Emission; Alkali Halide; Collision Cascade;
D O I：
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中图分类号：
学科分类号：
摘要：
Excitation of H+, H2+, H3+, He+, and Ar+ ions by impact on graphite and Al2O3 was investigated by means of emission spectroscopy in the 50–1000 eV energy range of the projectiles. Emission of Balmer series from excited neutral hydrogen is observed for both targets. In addition, for the Al2O3 target a continuum emission is observed. The continuum probably originates from excited MnOm molecules produced in the collision cascade, when surface atoms bound by ionic bonds are released after the bond breaking caused by neutralization. The spectra obtained under Ar+ -bombardment show Ar II lines emitted by backscattered ions.
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页码：161 / 166
页数：5
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