MOD —  New Lasing & Status of Projects II   (21-Aug-17   13:30—15:00)
Chair: B.E. Carlsten, LANL, Los Alamos, New Mexico, USA
Paper Title Page
Status of the LCLS-II FEL Project at SLAC  
  • P. Emma
    SLAC, Menlo Park, California, USA
  Funding: Work supported by the U.S. Department of Energy under Contract No. DE-AC02-76SF00515.
LCLS-II is a major new Free-Electron Laser (FEL) facility being built at SLAC, with collaborators from other US laboratories at ANL, Cornell, FNAL, LBNL, and TJNAF. This project aims to upgrade the operating LCLS-I facility by building a new 4-GeV superconducting RF (SRF) linac to provide continuous wave (CW) operation of two new FELs at beam rates of up to 1 MHz. The existing fixed-gap FEL undulator will be replaced by two new parallel adjustable-gap undulators providing an FEL spectral tuning range from 0.2 keV to 25 keV with average x-ray power levels approaching 1 kW. The existing 15-GeV copper linac in the last 3rd of the SLAC linac will be maintained as a low-rate, high-energy FEL driver in complementary operations with the new SRF linac. We present a brief status of the project, some of the latest test results, and thoughts on further facility expansion in the long term.
MOD02 Status of the FLASH FEL User Facility at DESY 1
  • K. Honkavaara
    DESY, Hamburg, Germany
  The FLASH facility at DESY (Hamburg, Germany) provides high brilliance FEL radiation at XUV and soft X-ray wavelengths for user experiments. Since April 2016, the second undulator beamline, FLASH2, is in user operation. We summarize the performance of the FLASH facility during the last two years including our experience to deliver FEL radiation to two user experiments simultaneously.  
Present Status of SACLA  
  • H. Tanaka
    RIKEN SPring-8 Center, Sayo-cho, Sayo-gun, Hyogo, Japan
  According to the increasing demand for XFEL utilization, introduction of pulse-by-pulse multi-FEL operation with full laser performance is a pressing issue, because most of experiments require a short pulse of less than 10 fs. The biggest obstacle is the emittance growth caused by CSR through a dogleg composed of a bend and a bend-back of 3 degrees, which seriously restricts on the operational peak current less than 2.5 kA. In order to solve this problem, we built a dual DBA-based dogleg using a 0.3 MW highly stable pulse power-supply in winter 2016. The full-performance pulse-by-pulse multi-FEL operation was successfully achieved in February 2017. This will be introduced in the user operation as a standard mode after Summer 2017 via the test use scheduled before the summer shutdown. On the other hand, the SXFEL user operation at BL1 has been started since 2016 and now two XFELs (BL2, BL3) and one SXFEL (BL1) beamlines are available simultaneously for user experiments at SACLA. This presentation shows the present status of SACLA focusing on the above topics.  
slides icon Slides MOD03 [7.606 MB]  
MOD04 Status and Perspectives of the FERMI FEL Facility 1
  • L. Giannessi, E. Allaria, L. Badano, F. Bencivenga, C. Callegari, F. Capotondi, F. Cilento, P. Cinquegrana, M. Coreno, I. Cudin, G. D'Auria, M.B. Danailov, R. De Monte, G. De Ninno, P. Delgiusto, A.A. Demidovich, M. Di Fraia, S. Di Mitri, B. Diviacco, A. Fabris, R. Fabris, W.M. Fawley, M. Ferianis, P. Furlan Radivo, G. Gaio, D. Gauthier, F. Gelmetti, F. Iazzourene, S. Krecic, M. Lonza, N. Mahne, M. Malvestuto, C. Masciovecchio, M. Milloch, N.S. Mirian, F. Parmigiani, G. Penco, A. Perucchi, L. Pivetta, O. Plekan, M. Predonzani, E. Principi, L. Raimondi, P. Rebernik Ribič, F. Rossi, E. Roussel, L. Rumiz, C. Scafuri, C. Serpico, P. Sigalotti, S. Spampinati, C. Spezzani, M. Svandrlik, M. Trovò, A. Vascotto, M. Veronese, R. Visintini, D. Zangrando, M. Zangrando
    Elettra-Sincrotrone Trieste S.C.p.A., Basovizza, Italy
  FERMI is the seeded Free Electron Laser (FEL) user facility at the Elettra laboratory in Trieste, operating in the VUV to EUV and soft X-rays spectral range; the radiation produced by the seeded FEL is characterised by a number of desirable properties, such as wavelength stability, low temporal jitter and longitudinal coherence. In this paper, after an overview of the FELs performances, we will present the development plans under consideration for the next 3 to 5 years. These include an upgrade of the LINAC and of the existing FEL lines, the possibility to perform multi-pulse experiments in different configurations and an Echo Enabled Harmonic Generation experiment on FEL-2, the FEL line extending to 4 nm (310 eV).  
Status of the SXFEL Facility  
  • B. Liu, G.P. Fang, M. Gu, Q. Gu, Y.B. Leng, D. Wang, L. Yin, Z.T. Zhentang
    SINAP, Shanghai, People's Republic of China
  The Shanghai Soft X-ray Free-Electron Laser facility (SXFEL) is being developed in two steps, the test facility SXFEL-TF and the user facility SXFEL-UF. The SXFEL-TF, which will generate 8.8 nm FEL radiation with the two-stage cascaded HGHG-HGHG or EEHG-HGHG scheme, is under commissioning at the SSRF campus. In the meantime, The SXFEL-UF, with designed wavelength in the water window region, began construction in November 2016, based on upgrading the linac energy to 1.5 GeV and building a second undulator line and five experimental end-stations. Status and future plan of the SXFEL is presented here.  
MOD06 Matter-Radiation Interactions in Extremes (MaRIE) Project Overview 1
  • R.L. Sheffield, C.W. Barnes, J.P. Tapia
    LANL, Los Alamos, New Mexico, USA
  The National Nuclear Security Administration (NNSA) requires the ability to understand and test how material structures, defects and interfaces determine performance in extreme environments. The MaRIE Project will provide the science ability for control of materials and their production for vital national security missions. To meet the mission requirements, MaRIE must be an x-ray source that has high brilliance and with very flexible and fast pulses to observe phenomena at shock-relevant time scales, and with high enough energy to study high-Z materials. This talk will cover the rationale for the machine requirements, a pre-conceptual reference design that can meet those requirements, and preliminary research needed to address the critical high risk technologies.