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Title: Double-electron detachment cross sections for 5-45 keV H{sup {minus}} ions incident on he atoms

Abstract

The authors report absolute measurements of double-electron detachment cross sections for 5-45 keV H{sup {minus}} ions incident on He atoms. The measurements are made using a new negative-ion accelerator at the University of Toledo. The cross sections are determined by measuring the rate of growth of the H{sup +} ion current exiting a He target, as a function of increasing He target density. The cross section increases from a value of 4.0 X 10{sup {minus}17} cm{sup 2} at an impact energy of 5 keV to a value of 5.3 X 10{sup {minus}17} cm{sup 2} at 12.5 keV. Above 12.5 keV, the cross section falls to a value of 3.6 X 10{sup {minus}17} cm{sup 2} at 45 KeV. These values of the cross section are compared with previous measurements of the double-electron detachment cross section for H{sup {minus}} ions incident on He atoms.

Authors:
; ;  [1]
  1. Univ. of Toledo, OH (United States)
Publication Date:
OSTI Identifier:
127848
Report Number(s):
CONF-920376-
Journal ID: BAPSA6; ISSN 0003-0503; TRN: 96:000321
DOE Contract Number:  
FG05-88ER13971
Resource Type:
Journal Article
Journal Name:
Bulletin of the American Physical Society
Additional Journal Information:
Journal Volume: 37; Journal Issue: 9; Conference: Meeting of the American Physical Society, Indianapolis, IN (United States), 16-20 Mar 1992; Other Information: PBD: Dec 1992
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; HYDROGEN IONS 1 MINUS; ELECTRON DETACHMENT; CROSS SECTIONS; HELIUM; ION-ATOM COLLISIONS; KEV RANGE 01-10; KEV RANGE 10-100

Citation Formats

Allen, J S, Fang, X D, and Kvale, T J. Double-electron detachment cross sections for 5-45 keV H{sup {minus}} ions incident on he atoms. United States: N. p., 1992. Web.
Allen, J S, Fang, X D, & Kvale, T J. Double-electron detachment cross sections for 5-45 keV H{sup {minus}} ions incident on he atoms. United States.
Allen, J S, Fang, X D, and Kvale, T J. Tue . "Double-electron detachment cross sections for 5-45 keV H{sup {minus}} ions incident on he atoms". United States.
@article{osti_127848,
title = {Double-electron detachment cross sections for 5-45 keV H{sup {minus}} ions incident on he atoms},
author = {Allen, J S and Fang, X D and Kvale, T J},
abstractNote = {The authors report absolute measurements of double-electron detachment cross sections for 5-45 keV H{sup {minus}} ions incident on He atoms. The measurements are made using a new negative-ion accelerator at the University of Toledo. The cross sections are determined by measuring the rate of growth of the H{sup +} ion current exiting a He target, as a function of increasing He target density. The cross section increases from a value of 4.0 X 10{sup {minus}17} cm{sup 2} at an impact energy of 5 keV to a value of 5.3 X 10{sup {minus}17} cm{sup 2} at 12.5 keV. Above 12.5 keV, the cross section falls to a value of 3.6 X 10{sup {minus}17} cm{sup 2} at 45 KeV. These values of the cross section are compared with previous measurements of the double-electron detachment cross section for H{sup {minus}} ions incident on He atoms.},
doi = {},
journal = {Bulletin of the American Physical Society},
number = 9,
volume = 37,
place = {United States},
year = {1992},
month = {12}
}