The status of the SNS external antenna ion source and spare RFQ test facility

Conference · Fri Jan 01 00:00:00 EST 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4935236· OSTI ID:1810031

Welton, Robert F.  ^[1]; Aleksandrov, Alexander V.  ^[1]; Dudnikov, Vadim ^[2]; Han, Baoxi  ^[1]; Kang, Yoon  ^[1]; Murray Jr, Syd ^[1]; Pennisi, Terry ^[1]; Piller, Chip  ^[1]; Santana, Manuel ^[1]; Stockli, Martin P.  ^[1]

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1. ORNL
2. Muons, Inc.

The Oak Ridge National Laboratory operates the Spallation Neutron Source, consisting of a H- ion source, a 1 GeV linac and an accumulator ring. The accumulated <1 μs-long, ~35 A beam pulses are extracted from the ring at 60 Hz and directed onto a liquid Hg target. Spalled neutrons are directed to ~20 world class instruments. Currently, the facility operates routinely with ~1.2 MW of average beam power, which soon will be raised to 1.4 MW. A future upgrade with a second target station calls for raising the power to 2.8 MW. This paper describes the status of two accelerator components expected to play important roles in achieving these goals: a recently acquired RFQ accelerator and the external antenna ion source. Currently, the RFQ is being conditioned in a newly constructed 2.5 MeV Integrated Test Facility (ITF) and the external antenna source is also being tested on a separate test stand. This paper presents the results of experiments and the testing of these systems.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1810031
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 2; Conference: International Conference on Ion Sources (ICIS) - New York, New York, United States of America - 8/23/2015 4:00:00 AM-8/28/2015 4:00:00 AM; ISSN 0034-6748
• Publisher: American Institute of Physics (AIP)
• Country of Publication: United States
• Language: English