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A New pulse magnet for the RCS injection shift bump magnet at J-PARC

J-PARC RCS入射用シフトバンプ磁石の新設計

高柳 智弘   ; 山本 風海   ; 神谷 潤一郎   ; Saha, P. K.   ; 植野 智晶*; 堀野 光喜*; 金正 倫計  ; 入江 吉郎*

Takayanagi, Tomohiro; Yamamoto, Kazami; Kamiya, Junichiro; Saha, P. K.; Ueno, Tomoaki*; Horino, Koki*; Kinsho, Michikazu; Irie, Yoshiro*

The 3-GeV Rapid-Cycling Synchrotron at the Japan Proton Accelerator Research Complex has demonstrated a high power beam equivalent to 1 MW. Therefore, in order to realize more stable operation, we are considering an upgrade plan. Regarding the radiation protection at the upgrade plan, a new injection system has been proposed to secure enough space for radiation shielding and maintenance work. For this purpose, it is necessary to integrate the splitted iron cores of the injection shift bump magnet into one core, the length of which is shorter than the total length of the splitted iron cores. The number of coil turns for the new one core magnet is then increased from 2 to 4. The structural design of the new shift bump magnet excited at 25 Hz repetition rate is in progress from view point of eddy current losses at the magnet edge and the coil temperature by using the OPERA-3D. This paper details these aspects and outlines the new power supply briefly.

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パーセンタイル:26.13

分野:Engineering, Electrical & Electronic

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