Monte Carlo Simulation of Scattering of Solar Radio Emissions

We. present Monte Carlo simulation techniques which are used to study the scattering of the solar and interplanetary radio emissions, both thermal and non-thermal, by random density fluctuations. We examine to what extent the scattering is responsible for (1) anomalous time delays, large source sizes, increased source heights, and widespread visibilities of type III and type II radio bursts, and (2) low brightness temperatures of the quiet sun radio emission and large. apparent source sizes. Using the empirically derived models for the electron densities, and density fluctuations, we show that (1) scattering is mostly responsible for the unusual behavior of the solar and interplanetary thermal and nonthermal emissions, and (2) Monte Carlo simulation techniques can be used to extract the characteristics of the electron beams and CME driven shocks from the type III and type II radio burst observations and the electron temperatures from the quiet sun observations.