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TY - CONF AU - Guetg, M.W. AU - Bane, K.L.F. AU - Brachmann, A. AU - Fisher, A.S. AU - Harrison, M.A. AU - Huang, Z. AU - Iverson, R.H. AU - Krejcik, P. AU - Lutman, A.A. AU - Maxwell, T.J. AU - Novokhatski, A. AU - Ruelas, M. AU - Stupakov, G. AU - Zemella, J. AU - Zhang, Z. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Commissioning of the RadiaBeam / SLAC Dechirper J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - We present results on the commissioning of the two-module RadiaBeam / SLAC dechirper system at LCLS. This is the first installation and measurement of a corrugated dechirper at high energy (4.4 - 13.3 GeV), short pulses (< 200 fs) and while observing its effect on an operational FEL. Both the transverse and longitudinal wakefields allow more flexible electron beam tailoring. We verify that, for a single module at a given gap, the strength of the longitudinal wake on axis and the dipole near the axis agree well with the theoretical values. Using direct longitudinal phase space mapping and X-ray FEL spectrum measurements we demonstrate the energy chirp control capabilities. PB - JACoW CP - Geneva, Switzerland SP - 809 EP - 812 KW - electron KW - photon KW - wakefield KW - controls KW - alignment DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-MOPOW044 UR - http://jacow.org/ipac2016/papers/mopow044.pdf ER -