ADS注入用超导磁体- I
The Superconducting Magnet for ADS Injection-I
摘要：
设计、制造并在线测试了ADS Injection-I型低温制冷机。CM 1包含七个超导磁体，七个超导辐条腔和七个束流位置监视器。超导磁体是一种轴向空间为170 mm的多功能磁体，包括一个用于束流聚焦的螺线管和两个用于轨道校正的校正器。磁体的设计目标是满足所需的积分场强，并将附近超导轮辐腔的漏磁场降低到小于2 G。在2.1K、31 mbar的低温系统中，磁体和轮辐腔共用，迫使磁体必须选择一种传导冷却的电流引线。第一批磁体于2014年7月在HIT的垂直杜瓦瓶中进行了测试。测量结果满足设计要求。2015年9月CM 1的在线运行表明，7个磁体分别可以在4.2K和2.1K下工作在230 A。本文将介绍磁体和电流引线的设计、现场测量和安装过程。
英文摘要：
The cryomodule I for ADS Injection-I had been designed, fabricated and online tested. The CM1 contains seven superconducting magnets, seven superconducting spoke cavities and seven beam position monitors. The superconducting magnet, which is a kind of multifunction magnet in a 170mm length axial space, contains a solenoid for beam focusing and two correctors for orbit correction. The design goals for the magnets are to meet the required integral field strength and to reduce the leakage field of less than 2 G at the nearby superconducting spoke cavities. The 2.1K, 31 mbar cryogenic system, where the magnets and spoke cavities shared with, force the magnet must select a kind of conduction cooled current leads. The first one of the batch magnets was tested in a vertical Dewar in HIT in July, 2014. The measurement results met the design requirements. Online operation of CM1 in September, 2015 showed that seven magnets can work at 230A under 4.2K and 2.1K respectively. This paper will present the magnet and current lead design, field measurement and the installation progress.
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