Author: Andersson, Å.
Paper Title Page
TUB3IO01 Commissioning of the Max IV Light Source 439
 
  • P.F. Tavares, E. Al-Dmour, Å. Andersson, M. Eriksson, M.J. Grabski, M.A.G. Johansson, S.C. Leemann, L. Malmgren, M. Sjöström, S. Thorin
    MAX IV Laboratory, Lund University, Lund, Sweden
 
  The MAX IV facility, currently under commissioning in Lund, Sweden, features two electron storage rings operated at 3 GeV and 1.5 GeV and optimized for the hard X-ray and soft X-ray/VUV spectral ranges, respectively. A 3 GeV linear accelerator serves as a full-energy injector into both rings as well as a driver for a short-pulse facility, in which undulators produce X-ray pulses as short as 100 fs. In this paper, we briefly review the overall facility layout and design concepts and focus on recent results obtained in commissioning of the accelerators with an emphasis on the ultralow emittance 3 GeV ring, the first light source using a multibend achromat.  
slides icon Slides TUB3IO01 [6.269 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-TUB3IO01  
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WEA3CO04 Impedance Characterization and Collective Effects in the MAX IV 3 GeV Ring 843
 
  • G. Skripka, Å. Andersson, P.F. Tavares
    MAX IV Laboratory, Lund University, Lund, Sweden
  • F.J. Cullinan, R. Nagaoka
    SOLEIL, Gif-sur-Yvette, France
 
  Collective instabilities in the MAX IV 3 GeV storage ring are enhanced by the combination of high beam current, ultralow emittance and small vacuum chamber aperture. To mitigate instabilities by Landau damping and improve lifetime three passive harmonic cavities are installed to introduce synchrotron tune spread and bunch lengthening respectively. We present the results of studies of collective effects driven by the machine impedance. Bunch lengthening and detuning were measured to characterize the effective impedance and estimate the effect of the harmonic cavity potential. Investigations of collective effects as a function of parameters such as beam current and chromaticity are discussed.  
slides icon Slides WEA3CO04 [3.845 MB]  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-NAPAC2016-WEA3CO04  
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