Author: Qin, W.
Paper Title Page
TU2A3
 Opportunities and Challenges of the Hard X-ray Self-seeding System at the European XFEL  
 
  • S. Liu, P. Dijkstal, C. Grech, M.W. Guetg, V. Kocharyan, T. Long, N.S. Mirian, W. Qin
    DESY, Hamburg, Germany
  • G. Geloni, N.G. Kujala, C. Lechner, S. Serkez, J.W. Yan
    EuXFEL, Schenefeld, Germany
  
  The Hard X-ray Self-seeding system (HXRSS) at the European XFEL provides users with longitudinally coherent X-ray FEL pulses with narrow bandwidth and high spectral density. With this setup we have achieved a maximum spectral density of about 1 mJ/eV at 9 keV. Combined with the MHz repetition rate, it opens up exciting new opportunities in a wide range of scientific fields. However, the increasing user demand and expectations also poses challenges in machine tuning and operation parameter ranges. We will summarize the HXRSS performance we have achieved and the user delivery experiences in the last two years.  
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TH2A1
 Dechirper System for Fresh-slice Applications at the European XFEL  
 
  • W. Qin, W. Decking, M.W. Guetg, J.J. Guo, S. Liu, T. Wohlenberg, I. Zagorodnov
    DESY, Hamburg, Germany
  • E. Gjonaj
    TEMF, TU Darmstadt, Darmstadt, Germany
  • J.J. Guo
    SINAP, Shanghai, People’s Republic of China
  • J.J. Guo
    University of Chinese Academy of Sciences, Beijing, People’s Republic of China
  
  Fresh-slice lasing using dechirper induced time-dependent orbit oscillation is capable of producing high intensity two-color XFEL pulses and high power short pulses at femtosecond level. At the European XFEL, a dechirper system for fresh-slice applications for both the hard x-ray beamline SASE1 and the soft x-ray SASE3 beamline is being developed. In this contribution, we present the novel design of the wakefield structure and initial commissioning efforts.  
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