Author: Ueki, R.
Paper Title Page
WEZAT0202 Lessons Learned From Operational Experience of SuperKEKB IR Magnets and Upgrade and Plans for the Future 188
 
  • Y. Arimoto, K. Aoki, M.K. Kawai, T. Kawamoto, M. Masuzawa, S. Nakamura, Y. Ohsawa, N.O. Ohuchi, T. Oki, R. Ueki, X. Wang, H. Yamaoka, Z.G. Zong
    KEK, Ibaraki, Japan
 
  SuperKEKB is an upgraded accelerator from KEKB, aiming at a luminosity of 1034. It is currently in operation, setting new luminosity records. We have completely redesigned the final focus-magnet system to achieve the target luminosity as upgrading from KEKB to SuperKEKB. After the completion of the system, it started its practical operation in 2018 after measuring the magnetic field in IR. The operation is generally stable, but some troubles have occurred. One of them is a quench. Radiation related to stored beam deposit energy on the superconducting coil. The beam suggested fluctuations in the main quadrupole magnetic field, and measurements using the R & D machine have demonstrated this. In addition, we are seeking a plan to upgrade the QCS for the long shutdown in 2026.  
slides icon Slides WEZAT0202 [11.173 MB]  
DOI • reference for this paper ※ doi:10.18429/JACoW-eeFACT2022-WEZAT0202  
About • Received ※ 30 November 2022 — Revised ※ 03 February 2023 — Accepted ※ 08 February 2023 — Issue date ※ 12 February 2023
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