“The world needs a fundamentally new technology that will support efforts to decarbonise on a timeline that can mitigate climate change. “This record-breaking magnet is the culmination of the last three years of work and will give the world a clear path to fusion power for the first time,” said Bob Mumgaard, the CEO of CFS. CFS said that its magnets will enable significantly stronger magnet fields, with much smaller tokamaks. ‘How do you design these power plants so it will be cost effective to build and deploy them?’Ī limitation of these devices was the use of low-temperature superconducting magnets that needed to be huge in order to create a magnetic field strong enough. While more than 160 have been built and successfully operated, none of these have achieved a net energy gain from fusion. These devices were initially conceptualised in the 1950s. Decade’s worth of researchĪ tokamak is a donut-shaped device that uses magnets to control and insulate plasma in which fusion occurs. This latest research is based around tokamaks – a cousin of the stellarator that works through a different way of treating the magnetic field. Methods for achieving net fusion vary, from using lasers to magnet-based stellarators. While the race to generate fusion energy is taking place all over the world, no researchers have been able to get out more energy than they are putting into their devices. In the recent test at PSFC, they found that the device is capable of sustaining a magnetic field of more than 20 tesla, which they calculate is enough to enable CFS’s tokamak device to achieve net energy from fusion reactions. This tech could help create commercial fusion energy, a sustainable and clean source of power.Ĭommonwealth Fusion Systems (CFS), a Massachusetts start-up founded by MIT scientists that has raised more than $200m in funding, and MIT’s Plasma Science and Fusion Centre (PSFC) are behind this new magnet. Researchers said they’re ‘trying to keep the planet liveable’ in the race to make sustainable fusion energy.Ī team of scientists in the US has announced the successful test of a new, powerful, high-temperature superconducting (HTS) magnet.
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