Research of the CICC Stability by the Numerical Code Gandalf

The basic approach to computer analysis of the CICC in superconducting Tokamak HT-7U is given and discussed. We will apply a 1-D mathematical model (Gandalf) to investigate the stability of CICC at real operating modes of Tokamak. 1-D model can be directly adopted to follow the evolution of the zone when the energy input is large enough and the coil quenches. In this report, we will analyze the stability of typical CICC (including pure copper) and discuss effect of copper on the stability of CICC.

大孔径背景场磁体的设计与分析

基于中国聚变工程实验堆(CFETR)接头的设计要求,提供了一种大孔径背景场磁体的设计方案。构造出大孔径背景场磁体的结构,利用背景场磁体来得到相应的磁场数据,对比研究磁体的参数对磁场的影响,得出相关参数的变化规律。利用Gandalf程序模拟计算出CFETR接头背景场磁体的分流温度,考虑到液氦的流体力学性能,采用Gandalf程序模拟超导股线的失超行为,估算出较为精确的最小失超能。将最小失超能作为Q0值代入到程序中得出热斑温度值,分析结果表明,设计符合要求,为CFETR高温超导接头的制作和实验提供了可靠依据。