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The most powerful stable magnetic field

19.08.2022

Scientists from the Chinese Academy of Sciences at their High Magnetic Field Laboratory were able to break the world record by achieving a stable magnetic field strength of 45,22 Tesla. This is 45 thousand times more powerful than the magnetic field of a conventional refrigerator magnet.

Chinese scientists managed to break the previous record for the strongest stable magnetic field, which was achieved by American scientists from the National High Magnetic Field Laboratory, USA in 1999. Then scientists with the help of their hybrid magnet achieved a magnetic field power of 45 Tesla.

Both American and Chinese physicists continue their work to improve hybrid magnets to create powerful stable magnetic fields. The hybrid magnet uses two different ways to create a magnetic field: with an outer superconducting ring and with an inner Bitter magnet. Using these two technologies, you can create the strongest stable magnetic fields.

Back in 2016, Chinese physicists approached the Americans and created a magnetic field with a force of 40 Tesla. Since then, they have strived to break the record of the Americans and they succeeded.

"In order to achieve the result of 45,22 Tesla for a stable magnetic field, we changed the structure of the magnet and created new materials, as well as optimized the performance of the hybrid magnet," explained Guangli Kuang from the Chinese Academy of Sciences.

To achieve a stable magnetic field of 45,22 Tesla, the Chinese magnet required a power consumption of 26,9 megawatts. According to this indicator, Chinese physicists also surpassed the Americans, because they achieved a magnetic field strength of 45 Tesla with a magnet power consumption of 30 megawatts.

"Our hybrid magnet creates a magnetic field that improves the experimental conditions for scientists who conduct research in the field of materials science, and this magnet will also play a key role in the study of magnetic fields of different strengths," Kuang said.

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