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TY - CONF AU - Xu, X.B. AU - He, T. AU - He, Y. AU - Li, C.X. AU - Lu, L. AU - Ma, W. AU - Shi, A. AU - Shi, L.B. AU - Sun, L.P. AU - Xing, C.C. AU - Yang, L. AU - Zhao, H.W. ED - Schaa, Volker RW ED - Pei, Guoxi ED - Chin, Yong Ho ED - Fu, Shinian ED - Zhao, Ning TI - The Multi-physics Analysis of LEAF RFQ J2 - Proc. of LINAC2018, Beijing, China, 16-21 September 2018 CY - Beijing, China T2 - Linear Accelerator Conference T3 - 29 LA - english AB - The 81.25 MHz CW RFQ is designed to accelerate heavy ions with Q/A from 1/7 to 1/2 at 0.5 MeV/u for the Low Energy Accelerator Facility (LEAF) at the Institute of Modern Physics (IMP) of the Chinese Academy of Science (CAS). The four-vane RFQ consists of six mod-ules with a total length of 5.95 meters, For the CW oper-ating mode, thermal management will be a very important issue, Therefore a multi-physics analysis is necessary to ensure that the cavity can stably operate at the high RF power . The multi-physics analysis process includes RF electromagnetic analysis, thermal analysis, mechanical analysis, and the frequency shift, the cooling water system is used for frequency tunning by the temperature adjustment, and also analyze RFQ undercuts, fixed tuners, and pi-mode rods, the results show that the thermal and structural design of this RFQ is reasonable. PB - JACoW Publishing CP - Geneva, Switzerland SP - 805 EP - 807 KW - rfq KW - cavity KW - simulation KW - heavy-ion KW - beam-transport DA - 2019/01 PY - 2019 SN - 2226-0366 SN - 978-3-95450-194-6 DO - DOI: 10.18429/JACoW-LINAC2018-THPO051 UR - http://jacow.org/linac2018/papers/thpo051.pdf ER -