The world record of 23 years of dust is broken!

Yesterday, good news came from Hefei Science Island in Anhui! The national steady -state strong magnetic field experimental device developed by the Hefei Material Science Research Institute of the Chinese Academy of Sciences Hefei Material Science Center climbed the peak of science and technology. The magnetic field refreshes the world record of the same type of magnet, and has become the highest steady -state magnetic field that can support scientific research globally worldwide. The original World Record was created by the National Strong Magnetic Lab in 1999. Its mixed magnet produced 450,000 Gaus. So far, the record has remained 23 years.

How high is the magnetic field of 452,200 Gaos? For example, the Earth's magnetic field is equivalent to 0.5 Gauss, and 452,200 Gaus is equivalent to more than 900,000 times the earth's magnetic field.

The national steady -state magnetic field experimental device is a major scientific and technological infrastructure (also known as "large scientific device") approved by the National Development and Reform Commission during the "Eleventh Five -Year Plan" period, including 10 magnets, 5 water -cold magnets, 4 ultra -conductive magnetic parts And a mixed magnet. Among them, hybrid magnets are the most internationally difficult magnetic magnets, and it is also a magnet that can produce the highest steady -state magnetic field. From a structural perspective, it is composed of "superconducting magnet" and inner "water -cooled magnet".

In 2016, the strong magnetic field team independently developed a mixed magnet in the center of 400,000 Gaus, ranking second in the world in one fell swoop. The team's pursuit of innovation and climbing peak has never stopped. With the support of the strong light magnetic pre -research project of the Hefei Comprehensive National Science Center, after more than 5 years of intense technical research, the strong magnetic field team innovated the magnetic structure and developed a new new. Materials and optimization of manufacturing technology, finally achieved major technical breakthroughs. The mixed magnet of the national steady -state strong magnetic field experimental device generated 452,200 Gauss's steady -state strong magnetic field under the power supply of 26.9 MW, reaching the international leading level, becoming important for the construction of the extreme conditions of scientific experiments in my country and the development of the world's strong magnetic field technology. milestone.

The steady -state strong magnetic field is an extreme experimental condition required for material science research, and is the "weapon" to promote major scientific discovery. Under the environment of a strong magnetic field, material characteristics will be regulated, which will help scientists to discover new material phenomena and explore new laws of material. The world ’s power power has always attached great importance to the construction of strong magnetic field experiments. At present, there are five major steady -state strong magnetic field laboratories internationally, distributed in the United States, France, the Netherlands, Japan, and Hefei Science Island in China.

When the national steady -state strong magnetic field experimental device has operated more than 500,000 machines, it has provided experimental conditions for more than 170 units at home and abroad, including Tsinghua University, Peking University, China University of Science and Technology, Fudan University, Nanjing University, Zhejiang University University, the Institute of Physics of the Chinese Academy of Sciences, High Energy Institute, Electrician Institute, Semiconductor Institute, Harvard University, Singapore National University, German Map Institute, etc. The cutting -edge research of the topic has achieved a series of major scientific and technological achievements, such as the first discovery of the three -dimensional quantum quantum effect caused by the outer orbit, the molecular and neural circuit mechanism that reveals the sunlight to improve the learning memory, and so on. At the same time, the results of the research and development devices derived from the research produced by the research and development of the device, such as the combined scanning probe microscopic technology, the national type I anticancer innovation targeted drugs, etc., successfully transformed into real productivity.

The mixed magnet of the national steady -state strong magnetic field experimental device produces the world's highest steady -state magnetic field, which effectively enhances the experimental conditions that support scientists to develop material science research. Essence

Although the strong magnetic field laboratory in my country started late, it took only more than ten years to achieve a key leap from scratch, from the end to the running and running, and created the "China Speed" for the development of strong magnetic technology!

(Guangming Daily All Media Reporter Chang He Ding Yiming)

Source: Guangming Daily All Media Reporter Chang He Ding Yiming

Responsible editor: Zhang Yongqun

Edit: Zhang Xueyu

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