JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Dhakal, P. AU - Daly, E. AU - Davis, G.K. AU - Fischer, J.F. AU - Forehand, D. AU - Howell, M.P. AU - Huque, N.A. AU - Kim, S.-H. AU - Mammosser, J.D. AU - Mitchell, A.L.A. AU - Owen, P.D. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Lesage, Ana ED - Schaa, Volker R.W. TI - Status of SNS Proton Power Upgrade SRF Cavities Production Qualification J2 - Proc. of SRF2021, East Lansing, MI, USA, 28 June-02 July 2021 CY - East Lansing, MI, USA T2 - International Conference on RF Superconductivity T3 - 20 LA - english AB - The Proton Power Upgrade project at Oak Ridge National Lab’s Spallation Neutron Source (SNS PPU) currently being constructed will double the proton beam power from 1.4 to 2.8 MW by adding 7 additional cryomodules, each contains four six-cell high beta (\beta = 0.81) superconducting radio frequency cavities. The cavities were built by Research Instruments, Germany, with all the cavity processing done at the vendor site, including electropolishing as the final active chemistry step. All 28 cavities needed for 7 cryomodules were delivered to Jefferson Lab, ready to be tested. The cryogenic RF qualifications and helium vessel welding were done at Jefferson Lab. The performance largely exceed the requirements, and greatly exceeded the performance of the original SNS cavity production series. Here, we present the summary of RF test on production cavities to this date. PB - JACoW Publishing CP - Geneva, Switzerland SP - 265 EP - 267 KW - cavity KW - cryomodule KW - site KW - proton KW - operation DA - 2022/10 PY - 2022 SN - 2673-5504 SN - 978-3-95450-233-2 DO - doi:10.18429/JACoW-SRF2021-MOPCAV005 UR - https://jacow.org/srf2021/papers/mopcav005.pdf ER -