【摘 要】
：
实验证实了用“MF Nb/Cu挤压管法”超导复合线制作13T实用Nb_3Sn/Nb-Ti超导磁体的可行性。净孔径为φ40mm的复合磁体,在4.2K,中心场强达到11.0T;净孔径为φ18mm的复合磁体,在
【机 构】
：
中国科学院上海冶金研究所,中国科学院上海冶金研究所,中国科学院上海冶金研究所,中国科学院上海冶金研究所
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实验证实了用“MF Nb/Cu挤压管法”超导复合线制作13T实用Nb_3Sn/Nb-Ti超导磁体的可行性。净孔径为φ40mm的复合磁体,在4.2K,中心场强达到11.0T;净孔径为φ18mm的复合磁体,在4.2K,中心场强达到13.0T,此时内绕组中的Nb_3Sn 复合线的全临界电流密度J(cw)=310A/mm_2,与短样性能相一致。
The feasibility of making 13T practical Nb_3Sn / Nb-Ti superconducting magnet by “MF Nb / Cu extrusion tube” superconducting composite wire was verified. At 4.2K, the center field strength reaches 11.0T; the composite magnet with a net aperture of φ18mm has a center field strength of 13.0T at 4.2K, at which point the total critical value of the Nb_3Sn composite line in the inner winding Current density J (cw) = 310A / mm_2, consistent with the short sample performance.
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