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RIS citation export for TUPA05: An H⁻ Injector for the ESS Storage Ring

AU  - Dudnikov, V.G.
AU  - Cummings, M.A.
AU  - Popovic, M.
ED  - Biedron, Sandra
ED  - Simakov, Evgenya
ED  - Milton, Stephen
ED  - Anisimov, Petr M.
ED  - Schaa, Volker R.W.
TI  - An H⁻ Injector for the ESS Storage Ring
J2  - Proc. of NAPAC2022, Albuquerque, NM, USA, 07-12 August 2022
CY  - Albuquerque, NM, USA
T2  - International Particle Accelerator Conference
T3  - 5
LA  - english
AB  - H⁻ charge exchange (stripping) injection into the European Spallation neutron Source (ESS) Storage Ring requires a 90 mA H⁻ ion source that delivers 2.9 ms pulses at 14 Hz repetition rate (duty factor ~4%) that can be extended to 28 Hz (df 8%). This can be achieved with a magnetron surface plasma H⁻ source (SPS) with active cathode and anode cooling. The Brookhaven National Laboratory (BNL) magnetron SPS can produce an H⁻ beam current of 100 mA with about 2 kW discharge power and can operate up to 0.7 % duty factor (average power 14 W) without active cooling. We describe how active cathode and anode cooling can be applied to the BNL source to increase the average discharge power up to 140 W (df 8%) to satisfy the needs of the ESS. We also describe the use of a short electrostatic LEBT as is used at the Oak Ridge National Laboratory Spallation Neutron Source to improve the beam delivery to the RFQ.
PB  - JACoW Publishing
CP  - Geneva, Switzerland
SP  - 357
EP  - 359
KW  - cathode
KW  - ion-source
KW  - rfq
KW  - plasma
KW  - operation
DA  - 2022/10
PY  - 2022
SN  - 2673-7000
SN  - 978-3-95450-232-5
DO  - doi:10.18429/JACoW-NAPAC2022-TUPA05
UR  - https://jacow.org/napac2022/papers/tupa05.pdf
ER  -