JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - CONF AU - Arimoto, Y. AU - Aoki, K. AU - Kawai, M.K. AU - Kawamoto, T. AU - Masuzawa, M. AU - Nakamura, S. AU - Ohsawa, Y. AU - Ohuchi, N.O. AU - Oki, T. AU - Ueki, R. AU - Wang, X. AU - Yamaoka, H. AU - Zong, Z.G. ED - Biagini, Maria Enrica ED - Chrin, Jan ED - Giabbai, Manuela ED - Iungo, Massimiliano ED - Schaa, Volker R.W. TI - Lessons Learned From Operational Experience of SuperKEKB IR Magnets and Upgrade and Plans for the Future J2 - Proc. of eeFACT2022, Frascati, Italy, 12-16 September 2022 CY - Frascati, Italy T2 - ICFA Advanced Beam Dynamics Workshop on High Luminosity Circular e+e- Colliders T3 - 65 LA - english AB - 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. PB - JACoW Publishing CP - Geneva, Switzerland SP - 188 EP - 194 KW - quadrupole KW - solenoid KW - luminosity KW - operation KW - detector DA - 2022/02 PY - 2022 SN - 2673-7027 SN - 978-3-95450-236-3 DO - doi:10.18429/JACoW-eeFACT2022-WEZAT0202 UR - https://jacow.org/eefact2022/papers/wezat0202.pdf ER -