An experimental investigation of the spectral composition of radiation behind the shock-wave front in a $\mathrm{CO_2}$–$\mathrm{N}_2$–$\mathrm{Ar}$ mixture

Experiments are performed to determine the spectral distribution of radiation in $\mathrm{CO_2}$–$\mathrm{N}_2$ and $\mathrm{CO_2}$–$\mathrm{N}_2$–$\mathrm{Ar}$ mixtures in a microwave discharge and behind the front of incident shock wave at velocities up to $7.5$ km/s. It is demonstrated experimentally that the spectral region of vacuum ultraviolet makes a significant contribution to radiation.