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Magnetic confinement fusion

Plasma heating with millimetre waves

The need for an intense source of coherent, millimetre-wavelength radiation to heat a fusion plasma and control its instabilities represents a significant challenge in the development of the ITER experimental fusion reactor. This challenge may now have been met.

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Figure 1: Schematic of a high-power high-frequency gyrotron for fusion applications.

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Alberti, S. Plasma heating with millimetre waves. Nature Phys 3, 376–377 (2007). https://doi.org/10.1038/nphys637

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