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TY - CONF AU - Papadopoulos, C. F. AU - Emma, P. AU - Filippetto, D. AU - Raubenheimer, T.O. AU - Sannibale, F. AU - Schmerge, J.F. AU - Wang, L. AU - Zhou, F. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - RF Injector Beam Dynamics Optimization for LCLS-II J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - LCLS-II is a proposal for a high repetition rate (>1 MHz) FEL, based on a CW, superconducting linac. The LCLS-II injector is being optimized by a collaboration from Cornell University, Fermilab, LBNL, and SLAC. There are a number of different possible technical choices for the injector including an rf gun or a high voltage DC gun. In this paper we present the status of the simulations for the injector optimization for an rf gun choice for LCLS-II. A multiobjective genetic optimizer is implemented for this reason, and optimized solutions for different bunch charges, corresponding to different operating modes, are presented. These operating points are also the initial part of the start-to-end simulations for LCLS-II. Finally, we discuss the trade-offs between compression and brightness conservation in the low energy (<100 MeV) part of the accelerator, as well as the status of sensitivity studies. PB - JACoW CP - Geneva, Switzerland SP - 1974 EP - 1976 KW - emittance KW - simulation KW - linac KW - brightness KW - cathode DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-WEPRO015 UR - http://jacow.org/ipac2014/papers/wepro015.pdf ER -