Direct observation of high frequency emissions from a critical velocity rotating plasma
- 1 June 1987
- journal article
- research article
- Published by AIP Publishing in Physics of Fluids
- Vol. 30 (6) , 1885-1889
- https://doi.org/10.1063/1.866202
Abstract
The high frequency (hf) emission associated with the turbulent heating mechanism, which is part of the critical velocity effect, is measured directly for the first time. The emissions are found to occur in the steep density gradient in the front of so‐called rotating ‘‘spokes,’’ as predicted by a model of the critical velocity effect in inhomogeneous plasmas. The spectral distribution of the waves and a lower bound for the absolute wave amplitude are obtained.Keywords
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