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Title: Total electron-detachment cross sections for collisions of negative halogen ions and rare gases for energies around threshold

Abstract

The threshold behavior of the absolute total electron-detachment cross section for collisions of Cl/sup -/ and Br/sup -/ with rare gases has been determined in an ion-beam--gas-target apparatus. The relative collision energies investigated range from below the electron affinity of the halogen up to about 100 eV. For all of the reactants studied, the threshold for detachment is found to occur at about twice the electron affinity of the negative ion. The general features of measurements are in agreement with the ideas of a simple collision model. Upper limits to detachment-rate constants which are based upon the measurements are presented.

Authors:
; ; ;
Publication Date:
Research Org.:
Department of Physics, College of William and Mary, Williamsburg, Virginia 23185
OSTI Identifier:
6682270
Resource Type:
Journal Article
Journal Name:
Phys. Rev., A; (United States)
Additional Journal Information:
Journal Volume: 18:3
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; ARGON; ION-ATOM COLLISIONS; BROMINE IONS; CHLORINE IONS; KRYPTON; NEON; XENON; ANIONS; ATOMIC IONS; ELECTRON DETACHMENT; TOTAL CROSS SECTIONS; ATOM COLLISIONS; CHARGED PARTICLES; COLLISIONS; CROSS SECTIONS; ELEMENTS; ION COLLISIONS; IONS; NONMETALS; RARE GASES; 640304* - Atomic, Molecular & Chemical Physics- Collision Phenomena

Citation Formats

Smith, B T, Edwards, III, W R, Doverspike, L D, and Champion, R L. Total electron-detachment cross sections for collisions of negative halogen ions and rare gases for energies around threshold. United States: N. p., 1978. Web. doi:10.1103/PhysRevA.18.945.
Smith, B T, Edwards, III, W R, Doverspike, L D, & Champion, R L. Total electron-detachment cross sections for collisions of negative halogen ions and rare gases for energies around threshold. United States. doi:10.1103/PhysRevA.18.945.
Smith, B T, Edwards, III, W R, Doverspike, L D, and Champion, R L. Fri . "Total electron-detachment cross sections for collisions of negative halogen ions and rare gases for energies around threshold". United States. doi:10.1103/PhysRevA.18.945.
@article{osti_6682270,
title = {Total electron-detachment cross sections for collisions of negative halogen ions and rare gases for energies around threshold},
author = {Smith, B T and Edwards, III, W R and Doverspike, L D and Champion, R L},
abstractNote = {The threshold behavior of the absolute total electron-detachment cross section for collisions of Cl/sup -/ and Br/sup -/ with rare gases has been determined in an ion-beam--gas-target apparatus. The relative collision energies investigated range from below the electron affinity of the halogen up to about 100 eV. For all of the reactants studied, the threshold for detachment is found to occur at about twice the electron affinity of the negative ion. The general features of measurements are in agreement with the ideas of a simple collision model. Upper limits to detachment-rate constants which are based upon the measurements are presented.},
doi = {10.1103/PhysRevA.18.945},
journal = {Phys. Rev., A; (United States)},
number = ,
volume = 18:3,
place = {United States},
year = {1978},
month = {9}
}