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 strength achieved by an all-superconducting magnet. This breakthrough was led by the Institute of Plasma Physics at the Hefei Institutes of Physical Science, Chinese Academy of Sciences, marking 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 in applications including nuclear fusion devices, high-energy physics experiments, advanced medical imaging (e.g., MRI), and materials science research. Previously, the international record for all-superconducting magnets stood at approximately 32 T. The achievement of 35.6 T not only pushes the technical boundary but also lays a solid foundation for future development of even higher-performance magnets.The new magnet employs an innovative hybrid design combining high-temperature and low-temperature superconductors, along with advanced winding techniques and a sophisticated cooling system, effectively addressing critical challenges such as quenching under extreme magnetic fields. This milestone will significantly support major national scientific infrastructure projects like China’s Fusion Engineering Test Reactor (CFETR) and provide essential technological backing for global efforts in controlled nuclear fusion research.
近日，中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场强纪录。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研发奠定了基础。该磁体采用了新型高温超导与低温超导复合结构设计，结合先进的绕制工艺和冷却系统，有效解决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中国聚变工程实验堆（CFETR）等国家重大科技基础设施建设，并为全球可控核聚变研究提供关键技术支持。
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