Recently, a Chinese research team has successfully developed an all-superconducting magnet with a central magnetic field strength of 35.6 tesla (T), setting a new world record for the highest field achieved by an all-superconducting magnet. Led by the Institute of Plasma Physics at the Hefei Institutes of Physical Science, Chinese Academy of Sciences, this breakthrough marks China’s entry into the global forefront of high-field superconducting magnet technology.An all-superconducting magnet uses superconducting materials throughout its entire coil system. Operating at cryogenic temperatures, it exhibits zero electrical resistance and can stably generate intense magnetic fields over extended periods. Such magnets are crucial for applications including nuclear fusion reactors, high-energy physics experiments, advanced medical imaging (e.g., MRI), and materials science research. Previously, the international record for all-superconducting magnets stood at around 32 T. The achievement of 35.6 T not only pushes the technical boundary but also provides vital engineering data and experience for designing even higher-performance magnets in the future.The new magnet employs a hybrid structure combining high-temperature and low-temperature superconductors. Through optimized electromagnetic design, mechanical support, and thermal stability control, the team overcame critical challenges such as quenching under extreme magnetic fields. This advancement will significantly support China’s fusion energy programs—such as the China Fusion Engineering Test Reactor (CFETR)—and the development of large-scale scientific facilities, while accelerating the industrial and medical applications of superconducting technologies.
近日，我国科研团队成功研制出中心场强达35.6特斯拉（T）的全超导磁体，刷新了全球全超导磁体的最高磁场强度纪录。这一突破由中国科学院合肥物质科学研究院等离子体物理研究所主导完成，标志着我国在高场超导磁体技术领域迈入世界领先行列。全超导磁体是指整个线圈系统均采用超导材料制成，在极低温下运行时电阻为零，能够长时间稳定产生高强度磁场，广泛应用于核聚变装置、高能物理实验、先进医疗成像（如MRI）以及材料科学研究等领域。此前，国际上全超导磁体的最高场强纪录约为32T，而此次35.6T的实现，不仅提升了技术上限，也为未来更高性能磁体的设计提供了关键数据和工程经验。该磁体采用了新型高温超导与低温超导复合结构，通过优化电磁设计、机械支撑和热稳定性控制，成功克服了高场下超导材料失超（quench）等关键技术难题。这一成果将有力支撑我国聚变能源研究（如CFETR项目）和大科学装置建设，同时推动超导技术在工业与医疗领域的产业化应用。
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