Production of H/sup -/ ions with addition of cesium or xenon to a hydrogen discharge in a small multicusp ion source

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.341498· OSTI ID:7124965

Walther, S R; Leung, K N; Kunkel, W B

The effect on H/sup -/ ion production by adding cesium or xenon to a hydrogen discharge, in a small magnetically filtered multicusp ion source, has been investigated. Addition of cesium vapor to the hydrogen discharge resulted in a factor of 16 increase in H/sup -/ output relative to the uncesiated discharge for the same operating parameters. Likewise, the addition of xenon gas to a hydrogen discharge resulted in a factor of 2.7 increase in H/sup -/ output over pure hydrogen operation at optimum H/sub 2/ source pressure, while maintaining the same arc parameters. Operation of the source with the plasma electrode at optimum bias voltage was essential to obtain this result.

• Research Organization: Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720
• OSTI ID: 7124965
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 64:7; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

640301* -- Atomic
Molecular & Chemical Physics-- Beams & their Reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALI METALS
BEAM PRODUCTION
BEAMS
CESIUM
CURRENTS
ELECTRIC ARCS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRODES
ELEMENTS
FABRICATION
FLUIDS
GASES
HYDROGEN
HYDROGEN 1 MINUS BEAMS
ION BEAMS
ION SOURCES
METALS
NONMETALS
OPERATION
RARE GASES
XENON