The ion extraction efficiency in a crossed beams experiment using a trochoidal electron monochromator

被引：20

作者：

Cicman, P

Francis, M

Skalny, JD

Märk, TD

机构：

[1] Comenius Univ, Dept Plasma Phys, Bratislava 84215, Slovakia

[2] Stevens Inst Technol, Dept Phys & Engn Phys, Hoboken, NJ 07030 USA

[3] Univ Innsbruck, Inst Ionenphys, A-6020 Innsbruck, Austria

来源：

INTERNATIONAL JOURNAL OF MASS SPECTROMETRY | 2003年 / 223卷 / 1-3期

基金：

奥地利科学基金会;

关键词：

electron monochromator; ion extraction efficiency; electron attachment cross section; ozone;

D O I：

10.1016/S1387-3806(02)00863-1

中图分类号：

O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];

学科分类号：

070203 ; 070304 ; 081704 ; 1406 ;

摘要：

The ion extraction efficiency from a trochoidal electron monochromator was investigated for the same set-up as used in previous experiments. Using the Simion program the ion trajectories in the monochromator were simulated and the ratio of the extracted ions to all ions produced was estimated. The extraction efficiency was found to change very dramatically even at low ion energies, thus, deforming measured attachment cross sections. The results of the simulation were then applied to previously measured cross-section data for dissociative electron attachment to ozone. The corrected data showed very good agreement with the experiments of other authors. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：271 / 278

页数：8

共 24 条

[1] Resonances in collisions of low-energy electrons with ozone: Experimental elastic and vibrationally inelastic differential cross sections and dissociative attachment spectra [J].