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TY - CONF AU - Sun, C. AU - Amstutz, Ph. AU - Hellert, T. AU - Jung, J.-Y. AU - Leemann, S.C. AU - Osborn, J.R. AU - Placidi, M. AU - Steier, C. AU - Swenson, C.A. AU - Venturini, M. AU - Wan, W. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Design of Booster-to-Accumulator Transfer Line for Advanced Light Source Upgrade J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - For the Advanced Light Source Upgrade, an on-axis swap-out injection is applied to exchange bunch trains between the storage ring and the accumulator ring. To replenish the accumulator ring before the swap-out injection, an electron beam from Linac is first injected into the ALS booster to ramp up the energy, and then transported to the accumulator through the Booster-to-Accumulator (BTA) transfer line. The design of the BTA transfer line is a challenging task as it has to fit within a tight space while accommodating the booster and accumulator rings at different elevations. Moreover, the BTA design needs to meet the optics boundary conditions and ideally minimize the size requirements of vacuum-chamber apertures. In this paper, we will present a design option of the BTA transfer line, which meets both space limitations and beam physics requirements. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2756 EP - 2759 KW - injection KW - quadrupole KW - storage-ring KW - optics KW - booster DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPGW111 UR - http://jacow.org/ipac2019/papers/wepgw111.pdf ER -