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TY - CONF AU - Inagaki, T. AU - Adumi, N. AU - Fukui, T. AU - Goto, S. AU - Hara, T. AU - Hasegawa, T. AU - Inubushi, Y. AU - Ishikawa, T. AU - Kameshima, T.K. AU - Kimura, H. AU - Kinjo, R. AU - Maesaka, H. AU - Miura, A. AU - Ohashi, H. AU - Ohata, T. AU - Otake, Y. AU - Tanaka, H. AU - Tanaka, S. AU - Tanaka, T. AU - Togawa, K. AU - Tono, K. AU - Yabashi, M. AU - Yamazaki, H. ED - Petit-Jean-Genaz, Christine ED - Arduini, Gianluigi ED - Michel, Peter ED - Schaa, Volker RW TI - Stable Generation of High Power Self-seeded XFEL at SACLA J2 - Proc. of IPAC2014, Dresden, Germany, June 15-20, 2014 C1 - Dresden, Germany T2 - International Particle Accelerator Conference T3 - 5 LA - english AB - A self-seeded XFEL system using a transmitted beam under Bragg diffraction has been developed at the first compact XFEL facility SACLA in order to generate a brilliant single-mode XFEL with high temporal coherence. High stability and unique beam characteristics of SACLA should significantly contribute to achieve reliable, high-quality seeded XFEL operation. In particular, the short-pulse property that has been achieved in routine operation enables us to switch SASE and seeded mode quickly, without changing the electron beam parameters. This is also useful for delivering different modes to multiple beamlines simultaneously. In the test experiments carried out in autumn 2013, spectral narrowing was observed at 10 keV using diamond 400 reflection. Systematic optimization on beam properties is now in progress towards experimental use of seeded XFELs in summer 2014. This talk gives the overview of the plan, achieved results and ongoing R&D. PB - JACoW CP - Geneva, Switzerland SP - 2888 EP - 2890 KW - radiation KW - electron KW - undulator KW - photon KW - FEL DA - 2014/07 PY - 2014 SN - 978-3-95450-132-8 DO - 10.18429/JACoW-IPAC2014-THPRO016 UR - http://jacow.org/ipac2014/papers/thpro016.pdf ER -