Development of a 3 T-250 mm Bore MgB2 Magnet System.
Development of a 3 T-250 mm Bore MgB2 Magnet System.
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开发 3 T-250 mm 孔径 MgB2 磁体系统。
DOI：
10.1109/tasc.2014.2364396
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
Amm,Kathleen
中科院分区：
文献类型：
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作者：
Mine,Susumu;Xu,Minfeng;Bai,Ye;Buresh,Steve;Stautner,Wolfgang;Immer,Christopher;Laskaris,EvangelosT;Amm,Kathleen
本文报道了3 T-250 mm磁共振系统的部件研制.由于原料硼粒度不均匀，预反应带铜层压导线存在n值相关问题，但已得到纠正。已提供了3公里以上的长电线。所有六个组件线圈都是用湿缠绕程序制成的。它们分别进行了测试，与实际磁体组件相同的传导冷却冷却方案。虽然所有线圈都可以在一定程度上斜升，但一些线圈显示出相当大的剩余电压。由于线圈上的电压分布是不均匀的，所以沿导线长度的均匀性沿着可能不够好。线圈的稳定性通过其即使在快速斜坡下也没有训练性能来验证。在过去一年的开发中，使用这种预反应导线的超导接头的磁体组件及其传导冷却试验已经计划好。
The authors had reported components' development of 3 T–250 mm boremagnet system. Pre-reactedtape wire with copper lamination had n-value related problem due to raw Boron particle size inequality, but it had been corrected. Longwires over 3 km had been supplied. All six component coils were made with a wet winding procedure. They were tested individually with the same cooling scheme of conduction cooling as the actual magnet assembly. Though all coils could be ramped to some extent, some coils showed fairly large remnant voltage. Since the voltage distribution over the coil was not even, the uniformity along the wire length may not be good enough. The stability of the coil was verified by its no training performance even with fast ramping. The magnet assembly and its test with conduction cooling were planned.of the superconducting joint with this pre-reacted wire was doubled during past one year's development.