Completion of Radiation resistant Magnet

该项目旨在完成由完全无机材料制成的抗辐射磁体。为此，我们继续进行了以下两点的研发工作：1，高电流密度矿物绝缘电缆（MIC）的研发2，由完全无机材料制成的各种磁体部件的研发1部分的研发工作已经由我们以前的工作完成。然而，即使在这项工作的开始点（2003年），第2部分的磁体部件也没有准备好。随后我们开始了对1、温度开关、2、水压开关、3、联锁逻辑电路、4矿物绝缘信号电缆的研发工作：对这些部件进行了研发工作，并取得了较好的效果。然后，我们组装了测试磁铁与这些部分以及MIC励磁线圈和长期的测试操作已经执行。并将这些部件应用于KEK 12 GeV-PS的真实的运行束流线的实际磁体中，可以说完全无机材料磁体的制造是成功的。在该项目的最后一年，我们已经调查了更广泛的磁铁应用到真实的高强度束线。然后设置磁铁与束流监测器，真空管道等进行了测试。为了在真实的束流装置上检验磁体的有效性，进行了具有实际物理动机的束流线设计。

This project aims to complete radiation resistant magnet which is made from completely inorganic materials. For this purpose, we have continued the R&D works on the next two points ;1,R&D of Mineral Insulation Cable (MIC) with high current density2,R&D of various magnet parts which were made from completely inorganic materialsThe R&D works of the section 1 have already been completed by our previous works. However magnet parts of the section 2 are not ready even at the start point of this work (2003). Then we started the R&D works on ;1,Temperature switch,2,Water pressure switch,3,Interlock logic circuit,4 Mineral insulation signal cable :The R&D works for these parts have been made and reasonable good results have been obtained. Then we assembled the test magnet with these parts as well as MIC excitation coil and the long term test operation has been performed. In addition it, these parts were applied for the actual magnets of real operating beam lines of the KEK 12 GeV-PS.Now we can conclude it the magnet fabrication by completely inorganic materials is successfully done. In the last year of the project, we have investigated the wider scope of the magnet application to the real high intensity beam line. Then the setting up the magnets with beam monitors, vacuum ducts etc. etc.was tested. The beam line design with actual physics motivation has been performed I order to test the usefulness of the magnets at the real beam facility.