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TY - CONF AU - Kuriki, M. AU - Konno, S. AU - Nagoshi, H. AU - Omori, T. AU - Takahashi, T. AU - Urakawa, J. AU - Yokoya, K. ED - Liu, Lin ED - Byrd, John M. ED - Neuenschwander, Regis T. ED - Picoreti, Renan ED - Schaa, Volker R. W. TI - Beam Loading Compensation of APS Cavity with Off-Crest Acceleration in ILC e-Driven Positron Source 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 - In E-Driven positron source of ILC, the generated positron is captured by RF accelerator by APS cavity. The positron is initially placed at the deceleration phase and gradually slipped down to acceleration phase. Because the beam-loading is expected to be more than 1A with a multi-bunch format, the compensation is essential to obtain uniform intensity over the pulse. A conventional method for the compensation is controlling the timing, but it doesn’t work in off-crest case. In this manuscript, we discuss the compensation with the phase and amplitude modulation on the input RF. PB - JACoW Publishing CP - Geneva, Switzerland SP - 1368 EP - 1371 KW - positron KW - beam-loading KW - linac KW - electron KW - target DA - 2021/08 PY - 2021 SN - 2673-5490 SN - 978-3-95450-214-1 DO - doi:10.18429/JACoW-IPAC2021-TUPAB015 UR - https://jacow.org/ipac2021/papers/tupab015.pdf ER -