Study of the Absorption Characteristics of Molecular Oxygen in the Schumann-Runge System at High Temperatures: I. Calculations of Absorption Spectra

摘要

A program for calculating the absorption and emission spectra of diatomic molecules that can take into account the vibrational-rotational interaction and nonequilibrium conditions of the gaseous medium is created. The program also allows one to perform calculations for a particular experimental setup by specifying the corresponding instrumental function. The absorption cross sections of molecular oxygen are calculated in the Schumann-Runge system for the temperature range 1000-6000 K and the wavelength interval 130-280 nm. These calculations are compared with the experimental data obtained behind the shock wave front in oxygen-argon mixture at different temperatures for a number of wavelengths in the range of 160-270 nm.