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Title: Observation of trapped H{sup {minus}} from trapped positive hydrogen ions

Abstract

The relatively efficient in situ production of H{sup -} in an ion trap has been demonstrated. Electron impact ionization of H{sub 2} produces the trapped H{sup +} and H{sub 2}{sup +} and H{sub 2}{sup +}H{sub 2}{sup +} produces the H{sub 3}{sup +}. H{sup -} is produced by surface charge exchange of the trapped positive hydrogen ions at a cesiated HAVAR trap electrode. Proper timing of switched trapping potentials projects the positive ions to the cesiated surface and traps the H{sup -} ions. Hydrogen ions with energies of 0.5 to 6 eV are detected with high sensitivity at {nu}{sup +}= 2 to 4 MHz by a marginal oscillator with a synthetic Q of 6000-8000. H{sup -} yields from H{sup +}, H{sub 2}{sup +} and H{sub 3}{sup +} are currently being measured.

Authors:
;
Publication Date:
OSTI Identifier:
281534
Report Number(s):
CONF-9305421-
Journal ID: BAPSA6; ISSN 0003-0503; TRN: 96:019460
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Journal Article
Journal Name:
Bulletin of the American Physical Society
Additional Journal Information:
Journal Volume: 38; Journal Issue: 3; Conference: 1993 American Physical Society annual meeting on atomic, molecular, and topical physics, Reno, NV (United States), 16-19 May 1993; Other Information: PBD: May 1993
Country of Publication:
United States
Language:
English
Subject:
66 PHYSICS; HYDROGEN IONS 1 MINUS; TRAPPING; HYDROGEN; ELECTRON-MOLECULE COLLISIONS; HYDROGEN IONS 1 PLUS; IONIZATION

Citation Formats

Hosea, K, and Kenefick, R A. Observation of trapped H{sup {minus}} from trapped positive hydrogen ions. United States: N. p., 1993. Web.
Hosea, K, & Kenefick, R A. Observation of trapped H{sup {minus}} from trapped positive hydrogen ions. United States.
Hosea, K, and Kenefick, R A. 1993. "Observation of trapped H{sup {minus}} from trapped positive hydrogen ions". United States.
@article{osti_281534,
title = {Observation of trapped H{sup {minus}} from trapped positive hydrogen ions},
author = {Hosea, K and Kenefick, R A},
abstractNote = {The relatively efficient in situ production of H{sup -} in an ion trap has been demonstrated. Electron impact ionization of H{sub 2} produces the trapped H{sup +} and H{sub 2}{sup +} and H{sub 2}{sup +}H{sub 2}{sup +} produces the H{sub 3}{sup +}. H{sup -} is produced by surface charge exchange of the trapped positive hydrogen ions at a cesiated HAVAR trap electrode. Proper timing of switched trapping potentials projects the positive ions to the cesiated surface and traps the H{sup -} ions. Hydrogen ions with energies of 0.5 to 6 eV are detected with high sensitivity at {nu}{sup +}= 2 to 4 MHz by a marginal oscillator with a synthetic Q of 6000-8000. H{sup -} yields from H{sup +}, H{sub 2}{sup +} and H{sub 3}{sup +} are currently being measured.},
doi = {},
url = {https://www.osti.gov/biblio/281534}, journal = {Bulletin of the American Physical Society},
number = 3,
volume = 38,
place = {United States},
year = {Sat May 01 00:00:00 EDT 1993},
month = {Sat May 01 00:00:00 EDT 1993}
}