Chinese scientific research team sets a world record for flat top pulse magnetic field, with field strength 19% higher than the current level abroad – Passionategeekz

Passionategeekz On June 22, Huazhong University of Science and Technology issued a document today. On June 20, Professor Li Liang’s team at the National Pulse Strong Magnetic Field Science Center successfully achieved a 71.36 Tesla flat-top pulsed magnetic field, further consolidating my country’s international leadership in this field – Previously, the team set a 64 Tesla world record in 2018.

Passionategeekz learned from the article that the flat-top pulsed magnetic field is the cutting-edge direction of strong magnetic field technology, with both steady-state and pulse advantages, can achieve high magnetic field strength and stable maintenance, providing unique experimental conditions for research such as nuclear magnetic resonance. To address the two major problems of stable magnet structure and precise regulation of large currents under strong electromagnetic force,The team achieves breakthroughs in materials and regulation technology: Independently developed domestic high-strength high-conducting copper-silver alloy wires, with tensile strength increasing by nearly 40% compared with the original materials; innovatively transforming transient control problems into reverse circuit topology design to achieve accurate generation of prestructured magnetic field waveforms.

Ultimately, the team had a high stability (stability 0.39% duration 12.11 milliseconds) of Tesla flat top pulsed magnetic fieldBreak the world recordthe field strength is 19% higher than the current foreign level.

It is reported that the “14th Five-Year Plan” major national scientific and technological infrastructure led by the team- The optimization and improvement project of pulsed strong magnetic field experimental device has entered the construction stage in 2024,70 Tesla flat-top pulse magnetic field is one of its three core technical indicators. Li Liang said: “This breakthrough not only verifies the technological advantages, but also lays a solid foundation for project promotion.”

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