Radiation of a relativistic charged particle in matter

Radiation produced by a relativistic charged particle in matter is described in terms of the radiation energy loss. It allows us to take into account the matter absorption and derive energy-angular distributions of the emitted photons for different particle trajectories. The Doppler radiation produced by laser pulses in matter and the influence of multiple scattering on the angular distribution of radiation are considered. The radiation in left-handed materials is discussed.