  Basic properties of radiation of the atomic chains excited by a channeled
particle are considered. Using a very simple two-dimensional model of a crystal
lattice we have shown that the main part of this radiation is generated on the
frequency of oscillations of a channeled particle between the crystal planes,
shifted by the Doppler effect. Spectral and angular distribution and spectral
distribution of the radiation of the atomic chain excited by channeled particle
were calculated. Emission spectrum of the atomic chain excited by channeled
particle was plotted.
