H- ion source developments at the SNS
Creators
- 1. Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, Tennessee 37830-6471 (United States)
Description
The U.S. Spallation Neutron Source (SNS) will require substantially higher average and pulse H- beam currents than can be produced from conventional ion sources such as the base line SNS source. H- currents of 40-50 mA (SNS operations) and 70-100 mA (power upgrade project) with a rms emittance of 0.20-0.35π mm mrad and a ∼7% duty factor will be needed. We are therefore investigating several advanced ion source concepts based on rf plasma excitation. First, the performance characteristics of an external antenna source based on an Al2O3 plasma chamber combined with an external multicusp magnetic configuration, an elemental Cs system, and plasma gun will be discussed. Second, the first plasma measurements of a helicon-driven H- ion source will also be presented
Additional details
Identifiers
- DOI
- 10.1063/1.2816937;
Publishing Information
- Journal Title
- Review of Scientific Instruments
- Journal Volume
- 79
- Journal Issue
- 2
- Journal Page Range
- p. 02C721-02C721.4
- ISSN
- 0034-6748
- CODEN
- RSINAK
Conference
- Title
- 12. international conference on ion sources
- Acronym
- ICIS 2007
- Dates
- 26-31 Aug 2007
- Place
- Jeju (Korea, Republic of)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40006427
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- ALUMINIUM OXIDES; ANTENNAS; BEAM CURRENTS; CONFIGURATION; EXCITATION; HYDROGEN IONS 1 MINUS; ION SOURCES; NEUTRON SOURCES; PERFORMANCE; PLASMA; PLASMA DIAGNOSTICS; PLASMA GUNS; PULSES; SPALLATION
- Descriptors DEC
- ALUMINIUM COMPOUNDS; ANIONS; CHALCOGENIDES; CHARGED PARTICLES; CURRENTS; ELECTRICAL EQUIPMENT; ENERGY-LEVEL TRANSITIONS; EQUIPMENT; HYDROGEN IONS; IONS; NUCLEAR REACTIONS; OXIDES; OXYGEN COMPOUNDS; PARTICLE SOURCES; RADIATION SOURCES
Optional Information
- Notes
- (c) 2008 American Institute of Physics