Exicitation mechanisms in He+-He collisions

被引：3

作者：

von Oppen, G ^{[1
]}

Busch, M ^{[1
]}

Ludwig, T ^{[1
]}

Drozdowski, R ^{[1
]}

机构：

[1] Tech Univ Berlin, Fak 2, Inst Atomare Phys & Fachdidakt, D-10623 Berlin, Germany

来源：

ATOMIC AND MOLECULAR PHYSICS | 2003年 / 5258卷

关键词：

stark effect; anticrossing spectroscopy;

D O I：

10.1117/12.544322

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Single-electron excitation of He atoms by 30 and 50 keV He+ impact was investigated using anticrossing spectroscopy. The measured anticrossing spectra give evidence for the assumption that in the intermediate energy range, where the excitation cross-sections have resonance-like maxima, excitation proceeds via Paul-trap promotion. The electron to be excited gains energy by transiently riding during the collision on the saddle of the two-center potential of the (He+)(2) molecular core.

引用

页码：1 / 12

页数：12