3. 2021年9月13日 16:27:31 : cgZKZ91NZc : U0pKT1BPOFlTQVk=[1]
超強力な磁石のおかげで核融合エネルギーが現実に近づく
https://www.yahoo.com/finance/news/fusion-energy-superconducting-electromagnet-172303204.html
Fusion energy just had its second breakthrough in as many months. Motherboard notes an MIT- and Commonwealth Fusion Systems-led research team has successfully demonstrated a high-temperature superconducting electromagnet producing a field strength of 20 tesla — the most powerful field of its kind on Earth. The technology could be the key to SPARC, a fusion device due in 2025 that could foster a plasma field producing more energy than it consumes.
Systems based on superconducting electromagnets aren't new. The under-construction ITER device in France will use low-temperature superconductors. However, the MIT-CFS hardware's high-temperature technology (built using a ribbon-like tape material) allows for much stronger magnetic fields. It can match the field of a low-temperature magnet system 40 times its size, according to MIT.
SPARC and its net positive energy output would be just the start. MIT and CFS still plan to develop a fusion power plant, ARC, that might go online as soon as 2033. Should that happen, fusion energy would finally become a practical reality — just in time to help a world transitioning to electric vehicles that demand more from power grids.
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