[Explanation] On August 12, the national steady-state strong magnetic field experimental device developed by the Strong Magnetic Field Science Center of the Hefei Institute of Physical Science, Chinese Academy of Sciences climbed the "peak of science and technology": its hybrid magnet (magnet diameter 32 mm) produced 452,200 Gauss (ie 45.22 Tesla) steady-state magnetic field, setting a new world record for the same type of magnet, becoming the highest steady-state magnetic field that can support scientific research on a global scale.
[Concurrent] Kuang Guangli, Academic Director of the High Magnetic Field Science Center of the Hefei Research Institute of the Chinese Academy of Sciences, and Director of the High Magnetic Field Anhui Provincial Laboratory
We have done a lot of theoretical analysis and calculations, and also made some model conductors and model magnets to test. On the basis of such a solid technical research and development, we have successfully researched this superconducting magnet.
Its room temperature aperture is 800 mm, and its low temperature aperture is 920 mm. It is still the highest representative of a superconducting magnet in the world so far. Of course, there are larger-scale magnets, but its magnetic field is not as high as mine, and it can reach such a high level. The magnetic field has such a large diameter and such a large volume, which is representative.
[Explanation] According to reports, 452,200 gauss is the highest steady-state magnetic field that can support scientific research on a global scale. The original world record was created by the National High Magnetic Field Laboratory in the United States in 1999. Its hybrid magnet produces 450,000 gauss, which has been maintained so far. A record of 23 years.
[Concurrent] Fang Zhen, associate researcher of the Strong Magnetic Field Science Center of the Hefei Research Institute of the Chinese Academy of Sciences and member of the water-cooled magnet technology research team of the strong optical magnetic pre-research project
For this indicator of 45.22 (10,000 Gauss), it has reached the highest steady-state field in the world, and it represents the peak of a technology. We have reached 40 Tesla from 2016 to 2017, and then from 2016 to 2017 40 Tesla to 45 Tesla, there are 5 Tesla steps here, we have walked for six years, and then in this regard, from 40 (Tesla) to 45 (Tesla) also experienced failures, Then to the final success, we have made a number of technological innovations here, from the design of the magnet, to the selection of materials, to the final processing technology, to assembly, to testing, all aspects have undergone a series of optimizations. This hard-earned 45.22 Tesla was then finally achieved.
[Explanation] It is understood that the steady-state strong magnetic field is an extreme experimental condition required for material science research and a "sharp weapon" to promote major scientific discoveries.
In the experimental environment of strong magnetic field, the properties of matter will be regulated, which is beneficial for scientists to discover new phenomena of matter and explore new laws of matter.
[Concurrent] Fang Zhen, associate researcher of the Strong Magnetic Field Science Center of the Hefei Research Institute of the Chinese Academy of Sciences and member of the water-cooled magnet technology research team of the strong optical magnetic pre-research project
Magnetic field is an important basic quantity in physics. It can excite matter. Physically, it can reveal a lot of new laws. The laws that we cannot see under low (magnetic) fields can reach us under high (magnetic) fields. It can be seen that this will help our scientists to discover more of these original results.
[Explanation] According to reports, the hybrid magnet of China's steady-state strong magnetic field experimental device generates a steady-state strong magnetic field of 452,200 gauss under a power supply of 26.9 megawatts, reaching the international leading level and becoming the construction of extreme conditions for scientific experiments in China and even the world. An important milestone in the development of strong magnetic field technology.
[Concurrent] Kuang Guangli, Academic Director of the High Magnetic Field Science Center of the Hefei Research Institute of the Chinese Academy of Sciences, and Director of the High Magnetic Field Anhui Provincial Laboratory
In the research under the strong magnetic field, it is said that 19 achievements have won the Nobel Prize, so the strong magnetic field has been hailed as the cradle of the Nobel Prize by the scientific community.
It can be used in many places, from life and health research, superconducting technology research, low temperature semiconductor material research, energy chemical reaction process research, quantum material wireless (communication) research, high temperature superconducting mechanism research, etc. Now we Just upgraded to a 452,200 Gauss hybrid magnet, what are we focusing on?
To do research on low-power electronic materials, then a strong magnetic field is actually a "sharp weapon" for low-power electronic materials research, and it is a very, very important research condition. The wider the range of your magnetic field, the higher the magnetic field. This The wider the space to explore, the greater the chance of discovering superior electronic materials.
Liu Honghe reports from Hefei, Anhui
Editor in charge: [Song Fangcan]