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August 15, 2021 03:34 am
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/RXqV9Sc1vzs/will-mit-scientists-powerful-magnet-lead-us-to-nuclear-fusion-energy
Will MIT Scientists' Powerful Magnet Lead Us to Nuclear Fusion Energy?
"A start-up founded by scientists at the Massachusetts Institute of Technology says it is nearing a technological milestone that could take the world a step closer to fusion energy, which has eluded scientists for decades," reports the New York Times:Researchers at M.I.T.'s Plasma Science and Fusion Center and engineers at the company, Commonwealth Fusion Systems, have begun testing an extremely powerful magnet that is needed to generate immense heat that can then be converted to electricity. It would open the gates toward what they believe could eventually be a fusion reactor... Though a fusion energy breakthrough remains elusive, it is still held out as one of the possible high-technology paths to ending reliance on fossil fuels. And some researchers believe that fusion research could finally take a leap forward this decade. More than two dozen private ventures in the United States, Europe, China and Australia and government-funded consortia are now investing heavily in efforts to build commercial fusion reactors. Total investment by people such as Bill Gates and Jeff Bezos is edging toward $2 billion. The federal government is also spending about $600 million each year on fusion research, and there is a proposed amendment to add $1 billion to the Biden administration's infrastructure bill, said Andrew Holland, chief executive of the Fusion Industry Association... Commonwealth's new magnet, which will be one of the world's most powerful, will be a crucial component in a compact nuclear fusion reactor known as a Tokamak, a design that uses magnetic forces to compress plasma until it is hotter than the sun... Commonwealth Fusion executives claim that the magnet is a significant technology breakthrough that will make Tokamak designs commercially viable for the first time. They say they are not yet ready to test their reactor prototype, but the researchers are finishing the magnet and hope it will be workable by 2025... Commonwealth, which has raised more than $250 million so far and employs 150 people, received a significant boost last year when physicists at M.I.T.'s Plasma Science and Fusion Center and the company published seven peer-reviewed papers in the Journal of Plasma Physics explaining that the reactor will work as planned. What remains to be proved is that the Commonwealth prototype reactor can produce more energy than it consumes, an ability that physicists define as Q greater than 1. The company is hoping that its prototype, when complete, will produce 10 times the energy it consumes. Commonwealth's chief executive (also a plasma physicist) explains to the Times how fusion energy is different than other sources: because it really doesn't require any resources. "You add up all the costs, the cost of normal stuff like concrete and steel, and it will make as much power as a gas plant, but without having to pay for the gas."Read more of this story at Slashdot.
Original Link: http://rss.slashdot.org/~r/Slashdot/slashdot/~3/RXqV9Sc1vzs/will-mit-scientists-powerful-magnet-lead-us-to-nuclear-fusion-energy
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