论文部分内容阅读
一台相对论返波振荡器匀场超导磁体现已完成设计、制造和测试,磁体室温孔径为30mm、中心场为5.51T.为了提高磁场的均匀性,设计的磁体由3个同轴线圈组成.所有的超导线圈串联运行,并由1台电源供电.磁体轴向从-30mm至30mm处磁场均匀性优于±0.5%.磁体可以通过超导开关进行闭环运行.此外,利用一对高温超导电流引线和两级GM制冷机(4.2K@1.5 W)可以实现超导磁体的零液氦蒸发.这里给出了该超导磁体的设计、制造、力学分析,并给出了磁体的测试结果.
A relativistic backwash oscillator shimming superconducting magnet has been designed, manufactured and tested. The magnet has a room temperature aperture of 30 mm and a center field of 5.51 T. In order to improve the homogeneity of the magnetic field, the designed magnet consists of three coaxial coils All superconducting coils operate in series and are powered by 1. The magnetic field uniformity is better than ± 0.5% from -30mm to 30mm in the axial direction of the magnet. The magnets can be closed-loop operated via a superconducting switch. In addition, Superconducting current leads and a two-stage GM refrigerator (4.2K @ 1.5 W) are used to achieve zero-helium vaporization of superconducting magnets. The design, fabrication and mechanical analysis of the superconducting magnet are given. Test Results.