TY - CPAPER AU - Feng, Y. AU - Delor, J.T. AU - Krzywinski, J. AU - Montanez, P.A. AU - Ortiz, E. AU - Raubenheimer, T.O. AU - Rowen, M. TI - Design Challenge and Strategy for the LCLS-II High Repetition Rate X-ray FEL Photon Stoppers J2 - Proc. of FEL2015 AB - Future high repetition rate X-ray FELs such as the European XFEL and LCLS-II presents new challenges to photon diagnostics as well as essential beamline components. In addition to these devices having to sustain the high peak power of a single-pulse FEL radiation, they must also be capable of handling the enormous power density of tens to hundreds of watts over an area as small as 0.1 mm X mm. In this talk, I will discuss the potential impact of high power FEL operation on performance of a gas attenuator and the design challenges to beam intercepting components such as a collimator or stopper. PB - JACoW CY - Geneva, Switzerland SP - 493 EP - 498 KW - photon KW - FEL KW - simulation KW - radiation KW - synchrotron DA - 2015/12 PY - 2015 SN - 978-3-95450-134-2 DO - 10.18429/JACoW-FEL2015-TUP056 UR - http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/tup056.pdf ER -