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TY - CONF AU - Du, C.C. AU - Wang, J.Q. ED - Schaa, Volker RW ED - Ji, Daheng ED - Li, Lu ED - Zhao, Ning TI - Incoherent Transverse Tune Shift Caused by Space-charge Effects in HEPS Storage Ring and Booster J2 - Proc. of SAP2017, Jishou, China, 28-30 August 2017 C1 - Jishou, China T2 - Symposium on Accelerator Physics T3 - 13 LA - english AB - In cases of low beam energy and high particle densities, space-charge effects become necessary discussions on transverse beam dynamics. It may cause a big enough tune shift in a circular accelerator moving the beam onto a resonance. In this paper, the transverse tune shift in High Energy Photon Source (HEPS) storage ring and booster ring caused by space-charge effects is firstly estimated based on the existing theory. Since the tune shift is at the level of 0.2, it may move the beam onto a resonance in the operation mode with high bunch charges. Then some simulations are made by tracking particles with elegant in the HEPS storage ring and booster including the space-charge effects. During the tracking, some particles are lost in HEPS booster ring with bunch charge of 14.4nC for the so called 'swap-out' mode. Further simulation shows that no particles would be lost if the charge of single bunch was less than 8.6nC in HEPS booster. PB - JACoW CP - Geneva, Switzerland SP - 131 EP - 133 KW - ion KW - booster KW - space-charge KW - storage-ring KW - resonance DA - 2018/02 PY - 2018 SN - 978-3-95450-199-1 DO - 10.18429/JACoW-SAP2017-TUCH3 UR - http://jacow.org/sap2017/papers/tuch3.pdf ER -