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TY - CONF AU - Yang, C. AU - Deng, H.X. AU - Feng, Y. AU - He, D.H. AU - Hong, Y. AU - Krzywinski, J. AU - Raubenheimer, T.O. AU - Tsai, C.-Y. AU - Wang, X.F. AU - Wu, J. AU - Yang, B. AU - Yoon, M. AU - Zhou, G. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - Self Seeding Scheme for LCLS-II-HE J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - Self-seeding is a reliable approach to generate fully coherent FEL pulses. Hard X-ray self-seeding can be realized by using a single crystal in Bragg transmission geometry. However, for a high repetition rate machine, the heat load on the crystal may become an issue. In this paper, we will study the facility performance of LCLS-II-HE by numerical simulations, and discuss the heat load and optimal undulator baseline configuration of LCLS-II-HE self-seeding scheme, and study the emittance tolerance of the LCLS-II-HE. PB - JACoW Publishing CP - Geneva, Switzerland SP - 4414 EP - 4417 KW - emittance KW - electron KW - FEL KW - undulator KW - simulation DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-THPMK055 UR - http://jacow.org/ipac2018/papers/thpmk055.pdf ER -