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本文报道实用11T超导磁体系统的研制和试验。该Nb_3Sn—NbTi混合磁体的有效孔径为41毫米;中心10毫米直径球内磁场均匀度优于1×10~(-3);在4.2K下,用单电源励磁,磁体失超中心磁场为11.8T;磁体系统配有4.2—300K可换样品稳态气泡式恒温器、大电流多样品测量杆,室温孔管、盘管形λ点致冷器和连续式氦液面汁。用25升液氦即可进行10小时以上物理实验。
This article reports the development and testing of a practical 11T superconducting magnet system. The effective aperture of the Nb_3Sn-NbTi hybrid magnet is 41 mm; the uniformity of the magnetic field in the center 10 mm diameter ball is better than 1 × 10 -3; at 4.2 K, the magnetic field of the magnet quench center is 11.8 T; The magnet system is equipped with a 4.2-300K swappable steady-state bubble thermostat, a high-current multi-sample measuring rod, a room temperature tube, a coil lambda cooler and a continuous helium liquid juice. Use 25 liters of liquid helium for more than 10 hours of physical experiments.