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Shintake, T.

Paper Title Page
TUOA05 Current Status of X-ray FEL Project at SPring-8  
 
  • T. Shintake
    RIKEN/SPring-8, Hyogo
  
 

XFEL/SPring-8 is SASE-FEL project aiming at generating intense coherent X-ray beam, which uses the thermionic gun with velocity bunching injector, 8 GeV normal conducting C-band accelerator, followed by 80 m long in-vacuum undulators [1]. Those key components have been verified at SCSS test accelerator. Target wavelength is 1 Å at 8 GeV beam and peak power level 20 GW. Machine construction is going well. Schedule is March 2009: Building construction completed. April 2009 - September 2010: Hardware installation. October 2010: High power operation of rf system and check. April 2011: Beam commissioning of X-ray FEL. We have the great opportunity to apply feedback in design from experiences in daily operation of the SCSS test accelerator (VUV SASE-FEL for user application). The talk covers the updated design work and current status of mass production of the 400 m long C-band accelerator system and undulators.


[1] http://www.riken.jp/XFEL/eng/index.html

  

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Slides

 
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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