Advanced RF-driven H- ion sources at the SNS

R. F. Welton, M. P. Stockli, S. N. Murray, T. R. Pennisi, B. Han, Y. Kang, R. H. Goulding, D. W. Crisp, N. P. Luciano, J. R. Carmichael, J. Carr

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

The US Spallation Neutron Source* (SNS), will require substantially higher average and pulse H- beam current than can be produced from conventional H- ion sources such as the baseline LBNL-SNS source. H- currents of 70-100 mA with an RMS emittance of 0.20-0.35 π mm mrad and a ∼7% duty-factor will be needed for the SNS power upgrade project in 2010. We are therefore investigating several advanced ion source concepts based on RF plasma excitation. First, a generalized discussion of our source development strategy is presented as well as the performance characteristics of a large-plasma-volume, external antenna source based on an Al2O 3 plasma chamber. The design and results of computational modeling of a high-power version of this source featuring an AlN plasma chamber is subsequently discussed as well as a high-efficiency extraction system necessary for high-current operation.

Original languageEnglish
Title of host publicationProceedings of the IEEE Particle Accelerator Conference, PAC07
Pages3774-3776
Number of pages3
DOIs
StatePublished - 2007
Externally publishedYes
EventIEEE Particle Accelerator Conference, PAC07 - Albuquerque, NM, United States
Duration: Jun 25 2007Jun 29 2007

Publication series

NameProceedings of the IEEE Particle Accelerator Conference

Conference

ConferenceIEEE Particle Accelerator Conference, PAC07
Country/TerritoryUnited States
CityAlbuquerque, NM
Period06/25/0706/29/07

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