7T大口径NbTi超导磁体降温通电实验  

Test of a NbTi 7T superconducting magnet

作　　者：刘华军[1] 武玉[1] 陈敬林[1] 韩奇阳[1] 龙风[1] 郭飞[1] 施毅[1] 彭晋卿[1] 

机构地区：[1]中国科学院等离子体物理研究所,合肥230031

出　　处：《低温与超导》2009年第3期24-26,共3页Cryogenics and Superconductivity

基　　金：中国科学院重大科研装备(Yz200726)

摘　　要：介绍了用于超导导体测试用超导磁体降温通电实验,降温采用500W@4.5K制冷机系统。300—10K直接采用冷He气循环冷却超导磁体,温度低于10K直接输入LHe。该磁体在4.2K温度下可通1000A的电流,其中心磁场为7T,储能为3M J。A NbTi 7T 338mm bore superconducting magnet was cooled down by 500W@ 4.5K cooling system. The cryostat and magnet were cooled by a liquid nitrogen cold source at the temperature range of 300k to 10K. By transfer of liquid helium, the magnet was cooled down to 4.2K. Test of superconducting magnet was carried out at 4.2K. The centre manget field is 7T. The stored energy is 3MJ.

关 键 词：超导磁体 失超保护 热点温度 

分 类 号：TN386[电子电信—物理电子学] TM265[一般工业技术—材料科学与工程]