Development of combined-function multipole permanent magnet for high-intensity beam transportation

Fuwa, Yasuhiro; Takayanagi, Tomohiro; Iwashita, Yoshihisa*

IEEE Transactions on Applied Superconductivity, 32(6), p.4006705_1 - 4006705_5, 2022/09

https://doi.org/10.1109/TASC.2022.3176251

Space charge compensation technique using multipole magnetic field components has been proposed to transport high intensity beam in the J-PARC linac. In order to realize this compensation technique, a compact size permanent hybrid multi-pole magnet would be suitable. A magnet system for the simultaneous production of quadrupole and adjustable octupole components using permanent magnet materials and have manufactured a first model of the magnet systems.