An apparatus for studying momentum-resolved electron-impact dissociative and non-dissociative ionisation

被引：0
作者：
V. Sharma
B. Bapat
机构：
[1] Physical Research Laboratory,
来源：
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics | 2006年 / 37卷
关键词：
Electron Impact; Momentum Distribution; Ionisation Reaction; Impact Ionisation; Electron Impact Ionisation;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A spectrometer for recoil ion momentum measurements has been built for studying electron impact ionisation and dissociation of molecules. The apparatus is described in detail, highlighting its capabilities, as well as differences in design from the ones already in use elsewhere. Momentum spectra of ions resulting from 1300 eV electron impact on CO2 are presented. We observe a broad momentum distribution for the dissociative ionisation reaction leading to the formation of C+, and two momentum groups in the CO+ and O+ channel. By recording multiple ions arising from the same dissociative ionisation event, we also demonstrate the formation of fragment pairs O+:CO+, C+:O+, and O+:O+.
引用
收藏
页码：223 / 229
页数：6
相关论文
共 13 条
  • [1] Moshammer undefined(1996)undefined Nucl. Instr. Meth. B 108 425-undefined
  • [2] Ullrich undefined(1997)undefined J. Phys. B 30 2917-undefined
  • [3] Moshammer undefined(1997)undefined Phys. Rev. A 56 1351-undefined
  • [4] Dörner undefined(1998)undefined Phys. Rev. A 57 1074-undefined
  • [5] Dorn undefined(1999)undefined Phys. Rev. Lett. 82 2496-undefined
  • [6] Bapat undefined(1999)undefined J. Phys. B 32 1859-undefined
  • [7] Wiley undefined(1955)undefined Rev. Sci. Instr. 26 1150-undefined
  • [8] Jagutzki undefined(1998)undefined Proc. SPIE 3438 322-undefined
  • [9] Bapat undefined(1995)undefined Rap. Commun. Mass Spectrom. 9 199-undefined
  • [10] Tian undefined(1998)undefined Phys. Rev. A 58 3783-undefined
12