WEA —  Status of Projects and Facilities   (26-Aug-15   08:30—10:10)
Paper Title Page
WEA01
 Current Status of PAL-XFEL Facility  
 
  • H.-S. Lee, H.-S. Kang, K.W. Kim, I.S. Ko
    PAL, Pohang, Kyungbuk, Republic of Korea
  • I.S. Ko
    POSTECH, Pohang, Kyungbuk, Republic of Korea
  
  Funding: The authors would like to gratefully acknowledge support by MSICTFP.
PAL-XFEL facility is an 1110 meters long laboratory for generating X-ray free electron laser. The radiation ranges between 0.1 and 10 nm. The facility consisted of three halls, a 780 m S-band linac hall for 10 GeV, a 225 m undulator hall for hard X-ray and a 105 m hard X-ray beam-line hall for user experiments. A soft X-ray undulator and a soft X-ray beam-line hall which have the length of 110 and 100 meters respectively are built in the facility. The building construction was completed in February 17, 2015. The installation of devices had been started accordingly. 		 
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WEA02
 Status of SXFEL and DCLS  
 
  • B. Liu, J.H. Chen, J.H. Chen, J. Chen, Z.H. Chen, H.X. Deng, J.G. Ding, G.P. Fang, W. Fang, M. Gu, Q. Gu, X. Hu, D. Huang, M.M. Huang, Y.B. Leng, B. Li, G.Q. Lin, Y. Liu, S. Sun, D. Wang, G. Wang, L. Wang, L. Yin, L.Y. Yu, M. Zhang, W. Zhang, Z.T. Zhao, S.P. Zhong, Q.G. Zhou
    SINAP, Shanghai, People's Republic of China
  • D.X. Dai, G.R. Wu, X.M. Yang, W.Q. Zhang
    DICP, Dalian, People's Republic of China
  • Y.-C. Du, W.-H. Huang
    TUB, Beijing, People's Republic of China
  
  Shanghai Soft X-ray Free-Electron Laser test facility (SXFEL) and Dalian Coherent Light Source (DCLS) and are two main ongoing FEL projects in mainland China, and the design, construction and commissioning will be carried out by Shanghai Institute of Applied Physics. Introduction to these two projects, including background, parameters, design and current status will be presented.  
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WEA03 SwissFEL Status Report 567
 
  • R. Ganter
    PSI, Villigen PSI, Switzerland
  
  SwissFEL is a 5.8 GeV linac which sends electron bunches at 100 Hz into a 60 m long in-vacuum undulator line to produce hard X-rays between 0.1 nm and 0.7 nm. The SwissFEL accelerator design is based on a low emittance beam with tight tolerances on RF stability. The first lasing of SwissFEL is planned for early 2017 and two end-stations should then be brought into operation in the same year. The delivery of the SwissFEL building to PSI is planned for fall this year, but some rooms are already completed and currently in use for components assembly. The production of the C-band RF accelerating structures has now reach the nominal rate of 5 structures/month. Two different RF solid state modulator prototypes could demonstrate jitter lower than 20 ppm but stability and reliability tests are still going on. The undulators assembly and measurement sequence have started and 13 undulators are planned to be ready in the tunnel by October 2016. Large series of components like magnets, vacuum systems and mechanical supports are already in house and under assembly. Photonics components for two beamlines and two end stations are ordered and planned to be ready for 2017.  
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WEA04
 Status of the European XFEL  
 
  • W. Decking
    DESY, Hamburg, Germany
  
  The European XFEL is under construction in the Hamburg region, Germany. The 3.3 km long facility aims at providing FEL radiation in the range from 260 eV up to 24 keV out of three undulators that can be operated simultaneously with up to 27000 pulses/second. The FEL is driven by a 17.5 GeV linear accelerator based on TESLA-type superconducting accelerator modules. This paper gives an update on the project status and an outlook towards the commissioning and fist operation.  
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WEA05
 Status of SACLA  
 
  • M. Yabashi
    RIKEN SPring-8 Center, Sayo-cho, Sayo-gun, Hyogo, Japan
  
  As the first compact XFEL facility, SACLA has operated for users over three years since March 2012. SACLA has routinely generated XFEL light in a photon energy range from 4 to 15 keV with a pulse energy of 0.5 mJ at 10 keV and a pulse duration less than 10 fs [1,2], which corresponds to a high peak power of several tens gigawatts. One of the unique characters of SACLA is to produce two-color SASE XFEL light with a large separation of the two wavelengths over 30% by using variable-gap, in-vacuum undulators [3]. Another feature is to employ state-of-the-art X-ray optics and diagnostics, in particular, X-ray focusing optics: A two-stage focusing system successfully generates an extremely high intensity of 1020 W/cm2 by forming a 50-nm spot [4]. These advanced technologies enabled to explore unique researches in a field of quantum/non-linear x-ray optics [5,6]. Recently, SACLA has produced a number of scientific achievements in various fields of researches (see http://xfel.riken.jp/eng/research/indexnne.html). To expand experimental opportunities for users, we commenced construction of the 2nd XFEL beamline (BL2) in 2013. We installed a full undulator line and a beam line, being independent of those in the existing BL3. We started commissioning of the beamline on October 8th, 2014, and observed a first lasing on 21st. A first user experiment was performed on April, 2015.
[1] T. Ishikawa et al., Nat Photon. 6, 540 (2012)
[2] Y. Inubushi et al., PRL 109, 144801 (2012)
[3] T. Hara et al., Nat Com. 4, 2919 (2013)
[4] H. Mimura et al., Nat Com. 5, 3539 (2014)
[5] K. Tamasaku et al., Nat Photon. 8, 313 (2014)
[6] H. Yoneda et al., Nat Com. 5, 5080 (2014) 		 
slides icon Slides WEA05 [21.910 MB]  
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