Researchers of the Chinese Academy of Sciences’ Institute of Plasma Physics (ASIPP) record experiment information in Hefei, east China’s Anhui Province, Sept. 28, 2025. (Xinhua/Wu Huijun)
HEFEI, Sept. 28 (Xinhua) — Chinese scientists introduced on Sunday that they’ve efficiently generated a gentle magnetic field of 351,000 gauss with a totally superconducting magnet, setting a brand new world record.
The breakthrough will considerably advance the commercialization of superior superconducting scientific devices, similar to nuclear magnetic resonance spectrometers, in accordance with the scientists.
It additionally gives essential technical help for a number of cutting-edge fields, together with fusion magnet programs, area electromagnetic propulsion, superconducting induction heating, magnetic levitation, and environment friendly energy transmission.
The magnet was developed by the Chinese Academy of Sciences’ Institute of Plasma Physics (ASIPP), situated in Hefei, east China’s Anhui Province, in collaboration with the Hefei International Applied Superconductivity Center, the Institute of Energy of the Hefei Comprehensive National Science Center, and Tsinghua University.
Earth itself is a huge magnet, producing a geomagnetic field of about 0.5 gauss. Superconducting magnets, fabricated by winding superconducting supplies, can generate extraordinarily sturdy magnetic fields whereas enabling lossless transmission of enormous currents.
Liu Fang, researcher with ASIPP, defined that the magnet adopts high-temperature superconducting insert-coil expertise, coaxially nested with low-temperature superconducting magnets.
The crew successfully overcame challenges similar to stress focus, shielding present results and multi-field coupling results underneath low-temperature, high-field situations. These improvements considerably improved the magnet’s mechanical stability and electromagnetic efficiency in excessive environments.
During the experiment, the magnet was energized to 35.1 tesla, stably operated for half-hour, and was safely demagnetized, absolutely verifying the reliability of the technical method. The achieved magnetic field energy, over 700,000 times that of Earth’s geomagnetic field, additionally surpassed the earlier world record of 323,500 gauss.
Such magnets are additionally key parts of magnetic confinement fusion gadgets, forming a “magnetic cage” that safely confines high-temperature plasma for sustained burning. ASIPP has lengthy been engaged in fusion analysis and has lately achieved full localization of superconducting supplies, gadgets and programs.
As the primary unit of the Chinese mission of the International Thermonuclear Experimental Reactor (ITER), the institute has taken on many procurement packages, together with superconductors, correction coils and magnet feeders.
This photograph taken on Sept. 28, 2025 reveals the superconducting magnet developed by the Chinese Academy of Sciences’ Institute of Plasma Physics (ASIPP) in Hefei, east China’s Anhui Province. (Xinhua/Wu Huijun)
(Web editor: Zhang Kaiwei, Liang Jun)