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TY - CONF AU - Maxwell, T.J. AU - Arthur, J. AU - Ding, Y. AU - Fawley, W.M. AU - Frisch, J.C. AU - Hastings, J.B. AU - Huang, Z. AU - Kim, K.-J. AU - Krzywinski, J. AU - Lindberg, R.R. AU - Marcus, G. AU - Shu, D. AU - Shvyd'ko, Yu. AU - Stoupin, S. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - Feasibility Study for an X-ray FEL Oscillator at the LCLS-II J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - We show that a free-electron laser oscillator generating X-ray pulses with hard X-ray wavelengths of order 0.1 nm is feasible using the presently proposed FEL-quality electron beam within the space of existing LCLS-II infrastructure when combined with a low-loss X-ray crystal cavity. In an oscillator configuration driven by the 4 GeV energy electron beam lasing at the fifth harmonic, output x-ray bandwidths as small as a few meV are possible. The delivered average spectral flux is at least two orders of magnitude greater than present synchrotron-based sources with highly stable, coherent pulses of duration 1 ps or less for applications in Mössbauer spectroscopy and inelastic x-ray scattering. PB - JACoW CP - Geneva, Switzerland SP - 1897 EP - 1900 KW - electron KW - cavity KW - FEL KW - undulator KW - laser DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-TUPMA028 UR - http://jacow.org/ipac2015/papers/tupma028.pdf ER -