45.22 million Gaus!The new world record was born in Anhui!

45.22 million Gaus!

New World Record!

The steady -state strong magnetic field experimental device mixed magnet. (Photo by Xu Yanhao)

On August 12, the national steady -state strong magnetic field experimental device developed by the Hefei Material Science Center of the School of Material Science of the Chinese Academy of Sciences to climb the "peak of science and technology": its mixed magnet (32 mm magnetic) generated 452,200 Gaos (ie 45.2222 Tesla's) steady -state magnetic field refreshed 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 Laboratory in 1999. Its mixed magnet produced 450,000 Gaos, which has maintained a record for 23 years.

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 ten magnets: five water -cooled magnets, four superconductors and one 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 five 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.

According to reports, 1 Tesla = 10000 Gauss, the Earth's magnetic field is about 0.5 Gaussia, and 452,200 Gauss is equivalent to more than 900,000 times the earth's magnetic field.

Experimental scene. (Photo by Xu Yanhao)

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 importance to the construction of strong magnetic field experimental conditions. 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.

Refresh the world record.

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 With the improvement of the magnetic field intensity generated by the mixed magnets, its open sharing level and user service level will also be greatly improved, which will surely become a major "weapon" to support my country's scientific and technological innovation. (Wang Yongan)

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