ИСТИНА

Interest in the study of kinetic processes in microwave discharge at low and moderate pressures in hydrogen is due to the various applications of hydrogen-containing low-temperature plasma in technologies. The internal logic of the development of plasma chemistry dictates the development of a rapid, affordable price and least time-consuming experimental - computational techniques based on combination of methods of emission spectroscopy and level - to - level collisional - radiative models of atomic - molecular plasma. This combination significantly expands the diagnostic capabilities of emission spectroscopy. The application of these methods allows: 1) for obtaining data on mechanisms of physical-chemical processes responsible for the formation of non-equilibrium distribution of populations of particles in excited radiating states; 2) for optimizing the input of reagents and catalytic additives in the discharge zone and output that of the reaction products; 3) for performing the selection of the atomic lines and molecular bands in the emission spectrum for the diagnostics of plasma parameters. Insufficient degree of completeness of the kinetic schemes of the formation and destruction of excited states of molecules and atoms of hydrogen of models of the atomic-molecular plasma reported in the literature limits their use for spectroscopic plasma diagnostics. This paper is devoted to development of the level - to - level semiempirical collisional-radiative model of molecular hydrogen plasma to investigate the processes of dissociation of molecular hydrogen and populations of electronically excited states of the hydrogen atom in microwave discharges at low and moderate pressures.