1–6 Jun 2025
Taipei International Convention Center (TICC)
Asia/Taipei timezone

Permanent magnet-based dipole-quadrupole magnet for SPring-8-II

THPB045
5 Jun 2025, 15:30
2h
Exhibiton Hall A _Bear (TWTC)

Exhibiton Hall A _Bear

TWTC

Poster Presentation MC7.T34 Permanent Magnets Thursday Poster Session

Speaker

Shin-ichi Matsubara (Japan Synchrotron Radiation Research Institute)

Description

In recent years, permanent magnet (PM) based multi-pole magnets have become an increasing concern as a replacement for conventional electro-magnets for light sources. The PMs are possible to save both energy and costs for operating and construction the facilities due to the absence of a power supply and cooling system. They have other advantages such as less space without magnetic coils and fewer failures than the conventional electro-magnets. PMs have specific issues, such as the adjustability of the magnetic field, demagnetization, and temperature dependence. Solutions to these issues were already confirmed with dipole structures for SPring-8-II, a major upgrade project of SPring-8 to the fourth generation. We have extended the knowledge and schemes to a dipole-quadrupole combined-function magnet (DQM) that comes in a quadrupole structure. The DQM is readily splittable into an upper and lower half for installation of a vacuum chamber. The reproducibility of the field gradient with half-splitting was less than 0.1%, which is within the required value. We report on the design and trial-manufacture of the PM based DQM.

Region represented Asia
Paper preparation format Word

Author

Shin-ichi Matsubara (Japan Synchrotron Radiation Research Institute)

Co-authors

Hiroshi Yamaguchi (Japan Synchrotron Radiation Research Institute) Kenji Fukami (RIKEN SPring-8 Center) Tsutomu Taniuchi (Japan Synchrotron Radiation Research Institute) Takahiro Watanabe (Japan Synchrotron Radiation Research Institute)

Presentation materials

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