Tokamak
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A tokamak is a machine that confines a plasma using magnetic fields in a donut shape that scientists call a torus.
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The tokamak is one of several types of magnetic confinement devices being developed to produce controlled thermonuclear fusion power. As of 2021, it is the leading candidate for a practical fusion reactor.
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In a tokamak, magnetic field coils confine plasma particles to allow the plasma to achieve the conditions necessary for fusion.
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The tokamak is an experimental machine designed to harness the energy of fusion.
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Inside a tokamak, the energy produced through the fusion of atoms is absorbed as heat in the walls of the vessel.
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Like a conventional power plant, a fusion power plant uses this heat to produce steam and then electricity by way of turbines and generators.