Stability of the C–C covalent bonds in fullerenes in the solid body–vapor structure during the thermodynamic action by a quasi-pulsed electron beam

The explosive evaporation of a fullerene mixture in a vacuum of $\sim$ 10$^{-2}$ Pa during the contraction of a 1-kW hollow electron beam into a spot on a substrate in a time of 0.1–1 s is considered. A comparative analysis of the Raman spectra and the absorption electron spectra of a starting fullerene mixture powder and the vapor condensates shows that the evaporation of C$_{60}$ and C$_{70}$ fullerenes proceeds without breaking C–C covalent bonds.