Momentum-imaging apparatus for the study of dissociative electron attachment dynamics

被引：24
|
作者：
Moradmand, A. [1 ]
Williams, J. B. [1 ]
Landers, A. L. [1 ]
Fogle, M. [1 ]
机构：
[1] Auburn Univ, Dept Phys, Auburn, AL 36849 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2013年 / 84卷 / 03期
关键词：
CROSS-SECTIONS; STRAND BREAKS; MONOCHROMATOR; EXCITATION; IMPACT; IONS; O-2; DNA; O2;
D O I：
10.1063/1.4794093
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
An ion-momentum spectrometer is used to study the dissociative dynamics of electron attachment to molecules. A skimmed, supersonic gas jet is crossed with a pulsed beam of low-energy electrons, and the resulting negative ions are extracted toward a time-and position-sensitive detector. Calculations of the momentum in three dimensions may be used to determine the angular dependence of dissociative attachment as well as the energetics of the reaction. (C) 2013 American Institute of Physics. [http://dx.doi.org/10.1063/1.4794093]
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页数：6
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