Author: Ben El Fekih, R.
Paper Title Page
TUPGW063 Studying the Dynamic Influence on the Stored Beam From a Coating in a Multipole Injection Kicker 1547
  • J. Kallestrup, Å. Andersson, J. Breunlin, D.K. Olsson, P.F. Tavares
    MAX IV Laboratory, Lund University, Lund, Sweden
  • P. Alexandre, R. Ben El Fekih
    SOLEIL, Gif-sur-Yvette, France
  The MAX IV 3 GeV ring is the first synchrotron light source utilizing the Multi-Bend Achromat scheme to achieve a low horizontal bare-lattice emittance of 328 pm rad providing high brilliance x-rays for users. A novel Multipole Injection Kicker (MIK) designed and constructed by SOLEIL is used to allow top-up operation with only minor disturbances to the stored beam, i.e., the users. We investigate the stored beam perturbations due to quadrupole fields arising during the MIK pulse, originating from its inner coating. Maximum bunch emittance growth of §I{21}{πco\meter\radian} was found in simulations. Measurements of the stored beam impact are performed and found to be in good agreement with simulations. We conclude that the MIK at MAX IV 3 GeV has the potential to deliver quasi-transparent injections with good capture efficiency.  
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About • paper received ※ 06 May 2019       paper accepted ※ 17 May 2019       issue date ※ 21 June 2019  
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