  Elementary processes in astrophysical phenomena traditionally attract
researchers attention. At first this can be attributed to a group of
hemi-ionization processes in Rydberg atom collisions with ground state parent
atoms. This processes might be studied as a prototype of the elementary process
of the radiation energy transformation into electrical one. The studies of
nonlinear mechanics have shown that so called regime of dynamic chaos should be
considered as typical, rather than exceptional situation in Rydberg atoms
collision. From comparison of theory with experimental results it follows that
a such kind of stochastic dynamic processes, occurred during the single
collision, may be observed.
