Answers are grounded in this paper and cite their sources.
A slow wave antenna has been designed to propagate Alfvén waves unidirectionally in the Texas Tech Tokamak. The antenna receives 30-kW rf pulses at 4–20 MHz, directly from a 50-Ω transmission line, without matching circuitry. Unidirectional Alfvén waves are successfully excited in the tokamak over a wide range of frequencies. Power coupling is approximately 36% with a little higher coupling during excitation of a pronounced toroidal eigenmode.
No takes yet. Share an insight, caveat, or question.
Akiyama et al. (1985) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: