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TY - CONF AU - Dziuba, F.D. AU - Aulenbacher, K. AU - Barth, W.A. AU - Basten, M. AU - Busch, M. AU - Gettmann, V. AU - Heilmann, M. AU - Kürzeder, T. AU - Miski-Oglu, M. AU - Podlech, H. AU - Salvatore, J. AU - Schnase, A. AU - Schwarz, M. AU - Yaramyshev, S. ED - Schaa, Volker RW ED - Pei, Guoxi ED - Chin, Yong Ho ED - Fu, Shinian ED - Zhao, Ning TI - RF Commissioning of the Superconducting 217 MHz CH Cavity for Heavy Ions and First Beam Operation J2 - Proc. of LINAC2018, Beijing, China, 16-21 September 2018 CY - Beijing, China T2 - Linear Accelerator Conference T3 - 29 LA - english AB - Future research programs at GSI in the field super heavy element (SHE) synthesis require high intense heavy ion beams above the coulomb barrier and high average particle currents. The upcoming demands exceed the technical opportunities of the existing UNIversal Linear ACcelerator (UNILAC). Consequently, a new dedicated superconducting (sc) continuous wave (cw) linac is crucial to keep the SHE research program at GSI competitive on a high level. Recently the first linac section, serving as a prototype to demonstrate the reliable operability of 217 MHz multi gap crossbar-H-mode (CH) cavities under a realistic accelerator environment, has been extensively tested with a heavy ion beam delivered from the GSI High Charge State Injector (HLI). Fulfilling its role as a key component of the whole demonstrator setup. The first sc 217 MHz CH cavity (CH⁰) successfully accelerated heavy ions up to the design beam energy and even beyond at high beam intensities and full transmission. In this contribution the rf commissioning and the first beam operation of the cavity is presented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 859 EP - 862 KW - cavity KW - linac KW - heavy-ion KW - SRF KW - MMI DA - 2019/01 PY - 2019 SN - 2226-0366 SN - 978-3-95450-194-6 DO - DOI: 10.18429/JACoW-LINAC2018-THPO073 UR - http://jacow.org/linac2018/papers/thpo073.pdf ER -