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TY - CONF AU - Laxdal, R.E. AU - Keir, J.J. AU - Matheson, B. AU - Muller, N. AU - Yao, Z.Y. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - Mechanical Tuner for a 325 MHz Balloon Single Spoke Resonator J2 - Proc. of SRF2019, Dresden, Germany, 30 June-05 July 2019 CY - Dresden, Germany T2 - International Conference on RF Superconductivity T3 - 19 LA - english AB - TRIUMF has designed, fabricated and tested the first balloon variant of the single spoke resonator at 325 MHz and β=0.3. TRIUMF has also designed and built a mechanical tuner as part of the development. The tuner employs a nutcracker lever pressing at the beam ports driven by a scissor jack. The scissor is actuated through a tube coupling to a warm ball-screw and servo-motor located outside the cryostat. The design and warm tests of the tuner will be presented. PB - JACoW Publishing CP - Geneva, Switzerland SP - 730 EP - 734 KW - cavity KW - cryomodule KW - linac KW - simulation KW - operation DA - 2019/08 PY - 2019 SN - "" SN - 978-3-95450-211-0 DO - doi:10.18429/JACoW-SRF2019-TUP106 UR - http://jacow.org/srf2019/papers/tup106.pdf ER -