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TY - CONF AU - Heilmann, M. AU - Du, X. AU - Gerhard, P. AU - Groening, L. AU - Kaiser, M. AU - Mickat, S. AU - Rubin, A. AU - Seibel, A. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - Design Study for a Prototype Alvarez-Cavity for the Upgraded Unilac J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - The design study describes the prototype Alvarez-tank of the new post-stripper of the UNILAC. A prototype with 17 drift tubes (including quadrupole singulets) of 3 m of total length and 2 m of diameter will be manufactured. This cavity features new drift tube shape profiles to provide for high shunt impedance at a maximum electric surface field of 1 Ek. Additionally, it allows realization and high power testing of an optimized stem configuration for field stabilization. In case of successful tuning and long-term operation at high power level, it shall be used as a first of series cavity of the new UNILAC post-stripper DTL. PB - JACoW CP - Geneva, Switzerland SP - 2205 EP - 2207 KW - cavity KW - DTL KW - operation KW - ion KW - quadrupole DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-TUPVA057 UR - http://jacow.org/ipac2017/papers/tupva057.pdf ER -