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TY - CONF AU - Yao, Z.Y. AU - Keir, J.J. AU - Kishi, D. AU - Lang, D. AU - Laxdal, R.E. AU - Liu, H. AU - Ma, Y. AU - Matheson, B. AU - Waraich, B.S. AU - Zheng, Q. AU - Zvyagintsev, V. ED - Pei, Guoxi ED - Schaa, Volker RW ED - Chin, Yong Ho ED - Fu, Shinian ED - Zhao, Ning TI - Tests of the Balloon Single Spoke Resonator J2 - Proc. of LINAC2018, Beijing, China, 16-21 September 2018 CY - Beijing, China T2 - Linear Accelerator Conference T3 - 29 LA - english AB - A balloon variant of the single spoke resonator (SSR) has been designed, fabricated and tested. The cavity is the SSR1 prototype for the Rare Isotope Science Project (RISP) in Korea. It is specifically designed to reduce the likelihood of multipacting barriers near the operating point. A systematic multipacting study leads to a novel geometry, a spherical cavity with re-entrant irises and a spoke. Other than eliminating multipacting around operational gradient, the balloon shape also provides competitive RF parameters and robust mechanical structure. Cryostat cold tests demonstrated cavity performance on each design aspect. The cold tests will be reported in this paper. PB - JACoW Publishing CP - Geneva, Switzerland SP - 417 EP - 419 KW - cavity KW - multipactoring KW - linac KW - TRIUMF KW - simulation DA - 2019/01 PY - 2019 SN - 2226-0366 SN - 978-3-95450-194-6 DO - DOI: 10.18429/JACoW-LINAC2018-TUPO039 UR - http://jacow.org/linac2018/papers/tupo039.pdf ER -