ITER超导接头铜材热损耗实验研究

Experiment study of the heat loss of copper for ITER superconducting joint

为了评估ITER超导接头所采用的铜材的热损耗影响,设计并搭建了用于测试剩余电阻率的实验平台。通过对所选用的铜材进行低温4.2 K和常温下的电阻率测试,计算了铜材的剩余电阻率。结果表明,所选用的铜材能够满足ITER双盒搭接接头铜材的设计要求。

In order to evaluated the effect of the heat loss of copper for ITER superconducting joint,a test setup which used to measure the residual resistance ratio（ RRR） has been built up. By taking measurement at 4. 2 K and room temperature,the RRR of the copper was calculated. The results shows that the type of copper can reach the requirement of ITER superconducting twin-box joint.