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TY - CONF AU - Mi, Z.H. AU - Li, Z.Q. AU - Lin, H.Y. AU - Pan, W.M. AU - Wang, Q.Y. AU - Zhang, P. AU - Zhang, X.Y. AU - Zheng, H.J. ED - Michel, Peter ED - Arnold, André ED - Schaa, Volker RW TI - Tuner Design and Test for 166.6 MHz SRF Cavity of HEPS 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 - The 166.6 MHz superconducting RF cavities have been proposed for the High Energy Photon Source (HEPS), a 6 GeV kilometer-scale light source. The cavity is of quarter-wave type made of bulk niobium with ¿=1. Each cavity will be operated at 4.2 K providing 1.2 MV accelerating. To compensate the frequency change due to manufacturing uncertainty, Lorentz force, beam loading, He pressure and microphonics the plunger tuner and gap tuner are chosen as options. Now the plunger tuner and low temperature gap tuner have been test with cavity, while the warm gap tuner is being designed. Details of the design and summary of the test results of the two type tuners with cavity are presented in this paper. PB - JACoW Publishing CP - Geneva, Switzerland SP - 642 EP - 645 KW - cavity KW - SRF KW - simulation KW - high-voltage KW - LLRF DA - 2019/08 PY - 2019 SN - "" SN - 978-3-95450-211-0 DO - doi:10.18429/JACoW-SRF2019-TUP080 UR - http://jacow.org/srf2019/papers/tup080.pdf ER -