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TY - CPAPER AU - Kazakov, S. AU - Hanna, B.M. AU - Pronitchev, O.V. TI - Testing of 325 MHz Couplers at Test Stand in Resonance Mode J2 - Proc. of International Conference on RF Superconductivity (SRF2015), Whistler, BC, Canada, Sept. 13-18, 2015 AB - The linear accelerator for the PIP-II program utilizes two types of 325 MHz Single Spoke resonator cavities: SSR-I and SSR-II. Operating power of SSR-II is about 17 kW and requires input couplers which can reliably work at power levels > 20 kW with full reflection at any reflected phase. Currently only one 10 kW RF amp is available for coupler testing. To increase testing power, a special resonance configuration were used. This configuration allows us to raise RF power approximately 3 times. The testing scheme and results are discussed in the paper. PB - JACoW CY - Geneva, Switzerland SP - 1376 EP - 1378 KW - cavity KW - resonance KW - multipactoring KW - rf-amplifier KW - monitoring DA - 2015/12 PY - 2015 SN - 978-3-95450-178-6 DO - 10.18429/JACoW-SRF2015-THPB098 UR - http://srf2015.vrws.de/papers/thpb098.pdf ER -