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2026年1月27日,依托中国科学院物理研究所建设的国家重大科技基础设施——综合极端条件实验装置取得新的技术进展。由中国科学院电工研究所与物理研究所联合研制的全超导用户磁体,实现中心磁场强度35.6 T,可用孔径为35 mm,超过美国国家强磁场实验室此前报道的32.0 T水平,刷新了全超导用户磁体的磁场强度纪录。

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35.6 T全超导用户磁体将提升极端条件实验能力
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    2026年1月27日,依托中国科学院物理研究所建设的国家重大科技基础设施——综合极端条件实验装置取得新的技术进展。由中国科学院电工研究所与物理研究所联合研制的全超导用户磁体,实现中心磁场强度35.6 T,可用孔径为35 mm,超过美国国家强磁场实验室此前报道的32.0 T水平,刷新了全超导用户磁体的磁场强度纪录。

    . 35.6 T全超导用户磁体将提升极端条件实验能力. 科技导报, 2026 , 44 (3) : 7 -7 .
    . Science & Technology Review, 2026 , 44 (3) : 7 -7 .
    2026年1月27日,依托中国科学院物理研究所建设的国家重大科技基础设施——综合极端条件实验装置取得新的技术进展。由中国科学院电工研究所与物理研究所联合研制的全超导用户磁体,实现中心磁场强度35.6 T,可用孔径为35 mm,超过美国国家强磁场实验室此前报道的32.0 T水平,刷新了全超导用户磁体的磁场强度纪录。
    该全超导磁体源于国家“十二五”重大科技基础设施项目。综合极端条件实验装置已于2025年2月通过验收,此次实验结果是在原有全超导磁体系统基础上,通过结构与参数优化实现的性能提升。
    强磁场超导磁体是在极低温条件下,利用超导材料零电阻特性产生高磁场的装备,具有磁场稳定性高、均匀性好和能耗低等特点,是极端条件物理、凝聚态物理和量子材料研究的重要实验平台,同时在科学仪器、高端医疗设备、能源与交通技术等领域具有应用潜力。
    强磁场超导磁体的工程实现涉及电磁设计、低温技术、超导材料和精密制造等多个环节,对磁场强度、稳定性、均匀度、有效口径及长期运行可靠性均提出较高要求。现有高温超导材料在临界电流密度、力学性能各向异性、屏蔽电流效应及尺寸一致性等方面仍存在限制,增加了磁体设计与工程实现的复杂度。
    围绕上述问题,中国科学院电工研究所团队在强磁场用户超导磁体设计与建造方面开展了系统研究,形成了高场高温超导磁体的电磁精细设计方法,并在多线圈轴向预紧、屏蔽电流调控等方面提出了相应技术方案。中国科学院物理研究所团队则在高温超导磁体运行状态监测、极低温高磁场测量,以及磁体系统与低温系统、用户实验系统的集成方面开展了技术攻关,支撑了全超导用户磁体的稳定运行与性能验证。
    该结果为在更高磁场条件下开展极端物性研究提供了新的实验条件,也为后续高场超导磁体的工程化研究积累了技术数据和运行经验。
    (综合:中国科学院电工研究所官网、光明网)

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    2种不同金属材料的力学参数

    Family
    属数
    Number of
    genus
    种数
    Number of
    species
    占总种数比例
    Percentage of
    total species (%)

    Genus
    种数
    Number of
    species
    占总种数比例
    Percentage of total
    species (%)
    鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
    小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
    多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
    红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
    小菇属 Mycena 11 5.26
    光柄菇属 Pluteus 5 2.39
    红菇属 Russula 17 8.13
    栓菌属 Trametes 5 2.39
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