Microwave radiation caused by double gamma-source

The microwave radiation (MWR) of air plasma created by a double gamma source is considered. The second source arises near the first with some time lag. The estimation of the plasma aerial temperature is carried out at the moment of generation of a coherent pulse by the second source. For incoherent bremsstrahlung the radio brightness temperature time dependence is calculated for incoherent source of bremsstrahlung.