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A kinetic theory is developed for strong Langmuir turbulence in the region of the reflection of a high-power ordinary radiowave in ionospheric plasma. The structure and quantity of the cavitons that form in the stage of well-developed turbulence are determined. The acceleration of electrons is investigated, and it is found that the electron distribution function acquires a significant tail with an effective temperature T eff of 50 to 100 times the plasma temperature. The region occupied by fast electrons is hundreds of times thicker than the layer of Langmuir turbulence. The theoretical results are shown to correlate well with the observational data on the electron acceleration and plasma emission in ionospheric experiments.
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Gurevich et al. (2004) studied this question.
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