  Electron-beam dispersion of pressed fullerite C60 targets in vacuum leads to
the deposition of thin films containing polymeric forms of C60. The aim of the
present report is to analyze physical-chemical processes in the fullerite
target during its electron-beam dispersion through the analysis of the kinetics
of the radiation temperature of the target surface, the coating growth rate and
the density of negative current on the substrate. It was shown that the
induction stage of the process is determined by the negative charging and
radiation-induced modification and heating of the target. The transitional
stage is characterized by nonstationary sublimation of the target material
through the pores in the modified surface layer and release of the accumulated
negative charge. Stabilization of the process parameters owing to the
convection cooling of the target by the sublimation products and the decrease
in the pressure inside the microcavities beneath the pores leads to a
quasi-stationary stage of target sublimation and deposition of a coating
containing polymeric forms of C60.
