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 - Maniscalco, J.T. AU - Aderhold, S. AU - Arkan, T.T. AU - Checchin, M. AU - Fuerst, J.D. AU - Gonnella, D. AU - Hogan, J. AU - Kaluzny, J.A. AU - Palczewski, A.D. AU - Posen, S. AU - Reece, C.E. AU - Wilson, K.M. ED - Saito, Kenji ED - Xu, Ting ED - Sakamoto, Naruhiko ED - Lesage, Ana ED - Schaa, Volker R.W. TI - Statistical Modeling of Peak Accelerating Gradients in LCLS-II and LCLS-II-HE 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 - In this report, we study the vertical test gradient performance and the gradient degradation between vertical test and cryomodule test for the 1.3 GHz LCLS-II cavities. We develop a model of peak gradient statistics, and use our understanding of the LCLS-II results and the changes implemented for LCLS-II-HE to estimate the expected gradient statistics for the new machine. Finally, we lay out a plan to ensure that the LCLS-II-HE cryomodule gradient specifications are met while minimizing cavity disqualification by introducing a variable acceptance threshold for the accelerating gradient. PB - JACoW Publishing CP - Geneva, Switzerland SP - 804 EP - 808 KW - cavity KW - cryomodule KW - multipactoring KW - simulation KW - accelerating-gradient DA - 2022/10 PY - 2022 SN - 2673-5504 SN - 978-3-95450-233-2 DO - doi:10.18429/JACoW-SRF2021-THPCAV009 UR - https://jacow.org/srf2021/papers/thpcav009.pdf ER -