The characteristics of rf-driven, multicusp, negative-ion sources

Conference · Mon Oct 05 00:00:00 EDT 1992 · AIP Conference Proceedings (American Institute of Physics); (United States)

OSTI ID:5341344

Debiak, T W; Melnychuk, S; Gammel, G; Cole, M; Solensten, L; Sredniawski, J ^[1]; Leung, K N ^[2]

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1. Grumman Accelerator Technology Development Laboratory, Bethpage, NY 11714 (United States)
2. Lawrence Berkeley Laboratory, University of California, Berkeley, CA 94720 (United States)

In this paper, we will present the initial results of our experiments designed to characterize an RF-driven, multicusp, negative-ion source. We will describe our experiences with suppression of RF pickup in the control system signal lines. Next, the characteristics of the extracted negative-ion beam will be described and compared with that from filament-based sources. The beam current, electron-to-ion ratio, and emittance as a function of RF power will be shown. Trends will also be shown with various electron suppression collar geometries and filter-rod field strengths. Finally, we will describe the change in beam current obtained when Cs is introduced into the plasma chamber using heated SAES dispensers.

• OSTI ID: 5341344
• Report Number(s): CONF-921145--
• Journal Information: AIP Conference Proceedings (American Institute of Physics); (United States), Journal Name: AIP Conference Proceedings (American Institute of Physics); (United States) Vol. 287:1; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

661220* -- Particle Beam Production & Handling
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALKALI METALS
ANIONS
BEAM CURRENTS
BEAM EMITTANCE
BEAMS
CESIUM
CHARGED PARTICLES
CURRENTS
DATA
DESIGN
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
EXPERIMENTAL DATA
FERMIONS
FILAMENTS
HYDROGEN IONS
HYDROGEN IONS 1 MINUS
INFORMATION
ION BEAMS
ION SOURCES
IONS
LEPTONS
METALS
NOISE
NUMERICAL DATA
RF SYSTEMS
Ta
Targets-- (1992-)