Electron-suppression experiments in a small multicusp H sup minus source

Journal Article · Thu Mar 01 04:00:00 EST 1990 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1141432· OSTI ID:6965827

Leung, K N; Hauck, C A; Kunkel, W B; Walther, S R ^[1]

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1. Accelerator Research Division Fusion Research Division, Lawrence Berkeley Laboratory, 1 Cyclotron Road, Berkeley, California 94720 (US)

Several techniques for suppressing the electrons before they form part of the extracted beam have been studied in a small multicusp H{sup {minus}} source. It is found that some schemes reduce both the electron and the H{sup {minus}} output currents. Other approaches, such as the installation of a collar at the extraction aperture, the addition of xenon or cesium to the hydrogen discharge, or the reduction of the source plasma potential, not only can reduce the electron current substantially, but bring about an enhancement in the extracted H{sup {minus}} current.

• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6965827
• Journal Information: Review of Scientific Instruments; (USA), Journal Name: Review of Scientific Instruments; (USA) Vol. 61:3; ISSN RSINA; ISSN 0034-6748
• 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
ANIONS
CESIUM
CHARGED PARTICLES
CURRENT DENSITY
ELECTRIC DISCHARGES
ELECTRIC FIELDS
ELECTRIC POTENTIAL
ELECTRON TEMPERATURE
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
FLUIDS
GASES
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
ION SOURCES
IONIZATION
IONS
LEPTONS
MAGNETIC FIELDS
METALS
NONMETALS
PLASMA DENSITY
PLASMA PRODUCTION
RARE GASES
XENON