低温工学
Online ISSN : 1880-0408
Print ISSN : 0389-2441
ISSN-L : 0389-2441
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FFAG 加速器応用に向けたRE 系モデルマグネットの試作
小柳, 圭高山 茂貴折笠 朝文石井 祐介来栖 努岩田 佳之野田 耕司荻津 透雨宮 尚之
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2020 年 55 巻 2 号 p. 98-102

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A project to develop fundamental technologies for accelerator magnets using high-Tc superconductors (HTSs) was carried out from FY 2009 to 2018 and funded by the Japan Science and Technology Agency under its S-Innovation Program. In this research program, conceptual design studies of fixedfield alternating gradient (FFAG) accelerators for carbon cancer therapy were carried out. In the conceptual magnet design for a full-scale, spiral-sector FFAG accelerator, a rare earth elementbased REBa2Cu3Ox (REBCO) superconducting coated conductor was incorporated to realize a compact, high-field magnet. With the aim of demonstrating the winding technique of REBCO coils that meet the requirements of the FFAG accelerator, we developed a cryocooler-cooled, reduced-size test magnet incorporating multiple REBCO coils, referred to here as the "model magnet". All coils of the model magnet were designed to have a part with a negative-bend shape, and the coils close to the beam duct were designed to have a three-dimensional winding shape. This paper describes the design and fabrication of the model magnet.

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© 2020 公益社団法人 低温工学・超電導学会 (旧 社団法人 低温工学協会)
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