EFFICIENCY FOR ELECTRON ACCELERATION IN SOLAR-ENERGY RELEASE REGION AS ESTIMATED IN THE CONTEXT OF PLASMA MECHANISM OF RADIO-EMISSION

The paper is devoted to the interpretation of spectrographic data with in the frequency range 8-12 GHz. Some spectral characteristics of weak solar steplike radio bursts are reported. To explain some parameters of the emission the ability to keep superthermal electrons in a magnet ic trap with dense inhomogeneous plasma is theoretically studied. On t he basis of this model we estimate the energy and number of accelerate d electrons, and the flux density of precipitating electrons which are the source of enhanced plasma radiation. For the obtained efficiency of electron acceleration the calculated intensity of gyrosynchrotron e mission proves to be less than the observed one.