Author: Tanaka, H.
Paper Title Page
MOPOTK017 Update of Lattice Design of the SPring-8-II Storage Ring Towards 50 pmrad 477
 
  • K. Soutome
    JASRI/SPring-8, Hyogo-ken, Japan
  • T. Hiraiwa, H. Tanaka
    RIKEN SPring-8 Center, Hyogo, Japan
 
  The storage ring lattice of SPring-8-II has been under optimization towards a low emittance of around 50 pmrad, which was initially set at 150 pmrad*. The optimization concept is based on the effective use of extra-radiation damping from damping wigglers installed in the four long straight sections each 30 m long in length. For this purpose, we have been re-optimizing the linear and nonlinear optics so as to reduce the radiation loss from the bending magnets. In parallel, since the emittance variation due to the gap change of the IDs can be an obstacle for conducting precise experiments, we are investigating a new passive method to suppress the emittance variation without any feedback system. In the paper, we report on these details.
*SPring-8-II Conceptual Design Report (2014), http://rsc.riken.jp/pdf/SPring-8-II.pdf
 
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2022-MOPOTK017  
About • Received ※ 05 June 2022 — Revised ※ 15 June 2022 — Accepted ※ 17 June 2022 — Issue date ※ 27 June 2022
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