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TY - CONF AU - Calvey, J.R. AU - Berenc, T.G. AU - Brill, A.R. AU - Emery, L. AU - Fors, T. AU - Gu, A. AU - Harkay, K.C. AU - Madden, T.J. AU - Sereno, N. AU - Wienands, U. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - Plan for Operating the APS-Upgrade Booster with a Frequency Sweep J2 - Proc. of IPAC2021, Campinas, SP, Brazil, 24-28 May 2021 CY - Campinas, SP, Brazil T2 - International Particle Accelerator Conference T3 - 12 LA - english AB - The APS-Upgrade presents several challenging demands to the booster synchrotron. Swap-out injection requires the booster to capture a high charge bunch (up to 17 nC), accelerate it to 6 GeV, and maintain a low emittance at extraction for injection into the storage ring. To accommodate these conflicting demands, the RF frequency will be ramped between injection and extraction. However, the RF cavity tuners will remain static, which means the couplers will need to withstand a high reflected power at extraction. This paper presents a plan for a system that will meet the requirements for injection efficiency, extracted emittance, and equivalent power at the coupler. Results from tracking simulations and beam studies with a frequency ramp will also be shown. PB - JACoW Publishing CP - Geneva, Switzerland SP - 201 EP - 204 KW - injection KW - booster KW - extraction KW - cavity KW - emittance DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-MOPAB046 UR - https://jacow.org/ipac2021/papers/mopab046.pdf ER -