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fusion device comparison table
Subject has definition
pinch machineA fusion device containing a plasma heated by a shock wave generated within the plasma as it is constricted by the rapidly increasing magnetic field.
stellaratorA type of plasma machine. It has a twisted-field configuration in the form of a figure 8 to fold the plasma back on itself; therefore, unlike a pinch machine, it has no ends where the plasma can leak out. Stellarators and tokomaks resemble each other in that both are toroidal devices that attain equilibrium and MHD stability through rotational transform and shear; they differ mainly in the way they attain these properties.
TokamakA type of "magnetic bottle" used in experiments on controlled nuclear fusion. (the name is a Russian acronym)

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