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Hasegawa, T.

Paper Title Page
FROA01 High Performance SASE FEL Achieved by Stability-Oriented Accelerator System 758
 
  • H. Tanaka, T. Fukui, T. Hara, N. Hosoda, T. Inagaki, S.I. Inoue, T. Ishikawa, H. Kitamura, C. Kondo, N. Kumagai, H. Maesaka, M. Nagasono, T. Ohshima, Y. Otake, T. Sakurai, T. Shintake, K. Shirasawa, T. Tanaka, K. Togawa, K. Tono, M. Yabashi
    RIKEN/SPring-8, Hyogo
  • T. Hasegawa, Y. Kano, T. Morinaga, H. Ohashi, Y. Tajiri, S. Takahashi, S. Tanaka, T. Togashi, M. Yamaga, R. Yamamoto
    JASRI/SPring-8, Hyogo-ken
  
 

Stable SASE FEL has been routinely used for user experiments since May 2008 at the SCSS test accelerator, which was constructed to perform a proof-of-principle experiment towards realization of a compact and high performance XFEL facility. In FY2008, a beam time of 840 hr (95 days) was provided to 11 research groups with a downtime rate of ~4%, a pulse energy of ~30μJ and an intensity fluctuation of ~10% in STD. A feature of our stable operation is power-saturated SASE FEL kept over a full operation period

  1. in spite of a day-by-day operation,
  2. without a complicated beam feedback control, and
  3. without hard maintenance.
In this talk we will try to review key points much contributing to this stable SASE FEL operation from the viewpoint of accelerator design, hardware and operation together with achieved SASE FEL performance and some experimental results reflecting the FEL performance.

  

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