Author: Guetg, M.W.
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THPMK045 Generation of High Power, High Intensity, Ultra Short X-Ray FEL Pulses 4384
 
  • M.W. Guetg, Y. Ding, Z. Huang, A.A. Lutman
    SLAC, Menlo Park, California, USA
 
  X-ray Free Electron Lasers combine high pulse power, short pulse length, narrow bandwidth and a high degree of transverse coherence. Any increase in the photon pulse power, while shortening the pulse length, will further push the frontier on several key XFEL applications including single molecule imaging and novel nonlinear X-ray methods. We will present experimental results at the Linac Coherent Light Source raising its maximum power to more than 300% of the current limit, while reducing the photon pulse length to 10 fs. This was achieved by minimizing residual transverse-longitudinal centroid beam offsets and beam yaw, and by correcting the dispersion when operating over 6 kA peak current with a longitudinally shaped beam.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPMK045  
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THPMK046 Advanced Fresh-Slice Beam Manipulations for FEL X-Ray Applications 4387
 
  • A.A. Lutman, Y. Ding, M.W. Guetg, Z. Huang, J. Krzywinski, J.P. MacArthur, A. Marinelli, T.J. Maxwell
    SLAC, Menlo Park, California, USA
  • C. Emma
    UCLA, Los Angeles, USA
 
  The recent development of the Fresh-slice technique granted control on which temporal slice lases in each undulator section in an X-ray Free-electron laser. Fresh-slice has been used for several experiments at the Linac Coherent Light Source for the generation of customizable high power two-color beams, and increased the performance of self-seeding schemes. As a novel development of the technique we present the demonstration of multistage self-amplified spontaneous-emission amplification schemes for the production of high-power ultra short pulses and improved control of the temporal duration of each pulse in multi-pulse schemes.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPMK046  
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