Development of the radio frequency driven H{sup {minus}} ion source for the National Spallation Neutron Source

Journal Article · Sun Feb 01 04:00:00 EST 1998 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.1148703· OSTI ID:591916

Leitner, M A; Gough, R A; Leung, K N; Rickard, M L; Scott, P K; Wengrow, A B; Williams, M D; Wutte, D C ^[1]

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1. Ernest Orlando Berkeley National Laboratory, University of California at Berkeley, Berkeley, California 94720 (United States)

The ion source for the 1 MW National Spallation Neutron Source (NSNS) is required to provide 35mA of H{sup {minus}} beam current (1 ms pulses at 60 Hz) at 65 keV with a normalized root-mean-square emittance of {lt}0.2 pimmmrad. The same ion source should be able to produce 70 mA of H{sup {minus}}at 6{percent} duty factor when the NSNS is upgraded to 2 MW of power. For this application, a radio-frequency driven, magnetically filtered multicusp source is being developed at Lawrence Berkeley National Laboratory. The design of this R and D ion source, which is equipped with a cesium dispenser-collar, a fast ion beam prechopper (rise times {lt}100 ns) and a strong permanent-magnet insert for electron deflection, will be presented.{copyright} {ital 1998 American Institute of Physics.}

• OSTI ID: 591916
• Report Number(s): CONF-980145--
• Journal Information: Review of Scientific Instruments, Journal Name: Review of Scientific Instruments Journal Issue: 2 Vol. 69; ISSN 0034-6748; ISSN RSINAK
• Country of Publication: United States
• Language: English

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