South Korean media: China has developed the strongest superconducting magnet in the world!
On February 27, South Korean media NEWSPIM published an article stating that the Chinese Academy of Sciences has developed a superconducting magnet that can generate a strong magnetic field of 35.6 tesla, making it the superconducting magnet with the highest magnetic field strength in the world.
The previous highest superconducting magnet was a 32.0 tesla magnet developed by the National High Magnetic Field Laboratory in the United States. The Chinese Academy of Sciences has increased the magnetic field strength by 3.6 tesla.
High-field magnets are divided into hybrid magnets and superconducting magnets. Hybrid magnets use superconducting magnets to produce low magnetic fields, while high magnetic fields are generated by copper coils. Superconducting magnets cannot withstand high magnetic fields due to their inherent material properties and are prone to breaking.
American researchers have achieved a magnetic field of up to 45 tesla using hybrid magnets.
However, the disadvantage is that it can only run for a few hours because driving the copper coil consumes a lot of power. Another disadvantage is that it requires a large amount of water for cooling.
Superconducting magnets can generate magnetic fields even under strong magnetic fields, and their efficiency is more than 100 times higher than that of hybrid magnets. Superconducting magnets consume very little power and can operate around the clock.
Superconducting magnets are used for stable and precise experiments and are expected to play an important role in China's basic science field.
Experiments with hybrid high-field magnets require a lot of time and cost. However, superconducting high-field magnets are low-cost and allow for sufficient experimental time.
Superconducting magnets can be used in nuclear fusion, accelerators, magnetic resonance imaging, energy storage systems, and power grids, and may become key technologies for the next generation of industries.
Original article: toutiao.com/article/1858277184712905/
Statement: This article represents the views of the author.