Mass spectrometry determination of the properties of the fullerite consisting of a C$_{60}$ – C$_{70}$ mixture

The transformations of the crystal structure of the fullerite consisting of a mixture of C$_{60}$ and C$_{70}$ that occur in the course of heating during pulsed laser irradiation are described using experimental results, the fullerite surface temperature is determined during secondary synthesis, and the absorption coefficient of laser radiation is calculated.