Design Study of High Intensity Beam lines using Radiation Resistant Magnets

在J-PARC等高功率束流加速器的生产靶区附近的磁体中，真空导管的设计是非常困难的。为了消除磁体间隙中的真空导管，我们开发了磁体系统，使我们能够在真空中操作大规模的抗辐射磁体。利用实际尺寸的束线磁铁搭建了该系统的样机并进行了测试。在修复了几个问题后，我们发现该系统可以合理地工作。这一技术成果立即被用于J-Parc强子装置靶站附近束线的实际建造。结果还入选了第20届国际磁体技术大会(MT20)的口头报告。

It is very difficult to design the vacuum ducts which are used in the magnets near the production target of the high power beam accelerator such as J-PARC. In order to eliminate vacuum ducts from magnet gaps, we developed the magnet system which enabled us to operate large scale radiation resistant magnets in vacuum. The proto-type of the system was constructed and tested by use of the real size beam line magnets. After fixing several problems, we found that the system could work reasonably. This technical result was immediately employed at the real construction of the beam lines near the target station of J-PARC Hadron Facility. The result was also selected the oral presentation at 20^<th> international conference on magnet technology (MT20).