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VOLUME 24 (1976) | ISSUE 7 | PAGE 410
Cyclotron absorption of fast magnetosonic waves in the TM-1-VCh tokamak in the presence of a small group of resonant ions
Strong absorption of fast magnetosonic waves (FMS) was observed in the TM-1-VCh tokamak at the second harmonic of the ion-cyclotron frequency ω = ίΒ in deuterium. The absorption is due to small addition of hydrogen (~1%), for which ω = ωΒί. The protons acquire energy effectively from the left-polarized components of the electric field of the FMS wave and the distribution function acquires a proton energy "tail," a fact that can find important application in a two-component tokamak.