2020 年 17 巻 1 号 p. 19-23
The production processes of the new types of electromagnet had been developed for the high intensity proton accelerator in J-PARC center. The electromagnets are composed of the high radiation resistance coils with insulating the aluminum strand with polyimide resin or using the mineral insulation cable (MIC). We have heard that the high intensity proton accelerators have been working without any troubles with the electromagnets.