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A comment on Compact nuclear fusion reactor is 'very likely to work,' studies suggest. Parent comment

Re:Compact nuclear fusion reactor is 'very likely to work,' ... by Retric on Thursday October 01, 2020 @12:29PM (#24652891)
ARC reactors due use high temperature plasma in a near vacuum. “The confinement time for a particle in plasma varies with the square of the linear size, and power density varies with the fourth power of the magnetic field,[2] so doubling the magnetic field offers the performance of a machine 4 times larger.”

https://en.wikipedia.org/wiki/ARC_fusion_reactor

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