![]() Several smaller fusion projects, including commercial reactors being developed by Lockheed Martin in the U.S., General Fusion in Canada, and Tokamak Energy in the U.K., aim to feed fusion-generated power to electricity grids years before ITER produces its first fusion reactions. (Image credit: Getty Images) Jump to: Nuclear. Computer generated artistic impression of fission. But to what extent are the risks from fusion and fission power similar In order to answer this question, we explore the qualitative and quantitative differences between fusion and fission technology for these four issues. published 9 July 2021 Fission involves splitting atoms fusion is about combining them. But it's not the only promising effort in the long quest for sustained nuclear fusion, or what some have called a “star in a jar.” Lots of competition Fusion power will probably need to deal with the same challenges and fears. ITER has international backing and a budget of more than $14 billion. ![]() These include building reactor walls that can withstand the intense heat of the fusion reaction - about 150 million degrees Celsius (270 million degrees Fahrenheit), or 10 times hotter than the core of the sun.Īnd then there’s the challenge of creating superconducting materials that can generate the powerful magnetic fields needed to hold the fusion reaction in place. Madia says the decades needed to bring the ITER reactor to full operation reflect the huge engineering challenges still facing fusion researchers. The assembly hall at ITER ( the International Thermonuclear Experimental Reactor), where components for the ITER Tokamak will be pre-assembled before integration into the machine, in Cadarache, southern France,on Dec. ![]() Construction of the ITER reactor - a doughnut-shaped vacuum chamber known as a “ tokamak” that spans more than 60 feet - recently passed the halfway point. ![]()
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