| Paper |
Title |
Page |
| TUPLT175 |
Operation of the SNS Ion Source at High Duty-Factor
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1538 |
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- R.F. Welton, T.A. Justice, S.N. Murray, M.P. Stockli
ORNL/SNS, Oak Ridge, Tennessee
- R. Keller
LBNL/AFR, Berkeley, California
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The ion source for the Spallation Neutron Source* (SNS) is a radio frequency, multi-cusp, source designed to deliver ~ 45 mA of H- with a normalized rms emittance of less than 0.2 pi mm mrad to the SNS accelerator. Once the SNS is fully operational a beam current duty factor of 6% (1 ms pulse length, repetition rate of 60 Hz) will be required from the ion source. To date, the source has been utilized in the early commissioning of the SNS accelerator and has already demonstrated stable, satisfactory operation at beam currents of ~30 mA with duty factors of ~0.1% for operational periods of several weeks. This work summarizes the results of a series of lifetime tests performed at a dedicated ion source test facility where the source was pushed closer to the operational goal of 6% duty factor.
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