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TY - CONF AU - Xu, G. AU - Jiang, S.C. ED - Schaa, Volker RW TI - On-Axis Beam Accumulation Based on a Triple-Frequency RF System J2 - Proc. of IPAC2020, Caen, France, 10-15 May 2020 CY - Caen, France T2 - International Particle Accelerator Conference T3 - 11 LA - english AB - Considering the incompatible off-axis injection scheme on the newly constructed light sources, we have proposed a new on-axis accumulation scheme based on the so-called triple-frequency RF system . By means of additional second harmonic cavities, the original static longitudinal acceptance will be lengthened, which will provide the sufficient time to raise a full-strength kicker pulse. Through imposing the specific restriction on the RF parameters, the final bunch length can also be stretched to satisfy the functions of the conventional bunch lengthening system. In this paper, we will move on to explain how to build this complex triple-frequency RF system, and present the relevant simulation works. PB - JACoW Publishing CP - Geneva, Switzerland SP - 40 EP - 43 KW - cavity KW - injection KW - simulation KW - synchrotron KW - storage-ring DA - 2020/10 PY - 2020 SN - 2673-5490 SN - 978-3-95450-213-4 DO - doi:10.18429/JACoW-IPAC2020-WEVIR04 UR - http://jacow.org/ipac2020/papers/wevir04.pdf ER -