ИСТИНА

Emission spectroscopy is a powerful tool to obtain information about the important parameters that characterize non-equilibrium discharge plasma at both low and high pressures. Spectroscopic observations of the light emitted by ionization gases can be used to determine conditions surrounding the emitted atoms or molecules. In our experiments, the corona discharge (ionization of gaseous He) occurred in a vicinity of a tip electrode under high voltage. The study has been carried out in gaseous He at the fixed temperatures 300 K, 150 K, and 11 K of the gas and different pressures in the cell from 0.1 MPa up to 3 MPa. The results from the analysis of the emission spectroscopy will be showed.