Recent Examples of tokamak from the Web
For a tokamak, that is fine because the field has to terminate somewhere, and the device operates in pulses.
And the best results were 3.5 times better than for an equivalent tokamak device.
Antennas outside the tokamak use a specific frequency of radio waves to excite the particles.
The stellarator and the tokamak are the only two designs that survived from a multitude of concepts that were explored in the 1950s and '60s.
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