摘要
介绍了为强流重离子加速器(HIAF)研制的强场超导聚焦螺线管样机的设计。该磁体中心场达到10T,在距离磁体中心260mm处的漏场要求小于240Gs,且保证平方积分场值达到14.2T^2m,由于安装空间的限制,要求尽量缩短磁体长度。为得到符合物理要求的线圈电磁设计,结合全局粒子群算法和局部SLSQP算法,采用Python编写了超导聚焦螺线管的优化设计程序,得到了满足要求的电磁设计方案。为了保证磁体的稳定运行,采用ANSYS对磁体及骨架进行了应力分析,得到了合理的骨架结构设计和关键工艺参数。利用OPERA的QUENCH模块对磁体进行了失超分析,得到了磁体的热点温度、失超电压等参数,确定了失超保护方案。
The article gave an introduction about a prototype high field superconducting focusing solenoid, which was devel- oped for High Intensity Heavy -Ion Accelerator Facility（HIAF）. The strength of the center of the magnetic field reached 10T. The stray field, which was 260mm away from the center of the magnetic field, had to have strength less than 240Gs and square integral field reach 14.2T2m. Due to limited installation space, the magnet should have the shortest length possible. In order to have the magnetic field design satisfy the various physical requirements, a Python optimization program for superconducting focu- sing solenoid was developed through a combination of Global Particle Swarm Optimization and local SLSQP optimization. To ensure stable operation, accurate backbone structure and critical design parameters were obtained by conducting stress analysis on the magnetic and its backbone structure. Quench protection was developed using magnetic~ parameters such as hot - spot temperature and quench voltage that were obtained by conducting quench analysis on the magnetic using OPERA and QUENCH modules.
出处
《低温与超导》
CAS
北大核心
2016年第5期31-35,86,共6页
Cryogenics and Superconductivity
关键词
强流重离子加速器
NB3SN
磁场设计
结构分析
失超分析
超导螺线管
High intensity heavy ion accelerator facility, Nb3 Sn, Design of magnetic field, Structural analysis, Quench anal-ysis, Superconducting solenoid
