Confinement of a plasma initiated and heated by electron cyclotron-resonance-frequency waves has been studied in the Heliotron-E. The observed plasma parameters were Tₑ=500-100 eV, Tᵢ100 eV, n̄ₑ=4×10¹² cm^-3 at $B=10$ kG. The electron energy decay time was 40±{}8 msec and the particle confinement time was estimated to be more than 70 msec. These results offer a considerable improvement in energy confinement over Ohmically heated plasmas.
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Iiyoshi et al. (1982) studied this question.
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