Abstract
The new possibility of controlled excitation of parametric instability in a partially ionized collisional plasma is suggested. This possibility is based on a special type of the interaction two radiowaves in a plasma, when the threshold amplitude value of parametric instability of plasma-wave resonant interaction, connected with one radiowave, is governed by electron heating, produced by another radiowave. The possibilities of utilization of such effects are connected with temperature excitation or attenuation of parametrical instabilities and separate determination of frequencies of electron-ion and electron-neutral elastic collisions in a local plasma region.
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