Kinetics of metastable states in high-pressure nitrogen plasma pumped by high-current electron beam
K S Klopovsky; A V Mukhovatova; A M Popov; N A Popov; O B Popovicheva; T V Rakhimova; K S Klopovsky; Inst. of Nucl. Phys., Moscow State Univ., Russia; A V Mukhovatova; Inst. of Nucl. Phys., Moscow State Univ., Russia; A M Popov; Inst. of Nucl. Phys., Moscow State Univ., Russia; N A Popov; Inst. of Nucl. Phys., Moscow State Univ., Russia; O B Popovicheva; Inst. of Nucl. Phys., Moscow State Univ., Russia; T V Rakhimova; Inst. of Nucl. Phys., Moscow State Univ., Russia
Журнал:
Journal of Physics D: Applied Physics
Дата:
1994-07-14
Аннотация:
An effective method for calculating the electron energy distribution function in a plasma pumped by an electron beam is suggested. The electron impact excitation rates of different N<sub>2</sub> and Hg states are obtained. The evolution of populations of the N<sub>2</sub> excited states and of the Hg radiative states in a N<sub>2</sub>-Hg mixture is considered. The characteristic time tau <sub>e</sub> of equilibrium establishment is shown to be strongly dependent on the pressure of the mixture. The variation of the N<sub>2</sub>(A<sup>3</sup> Sigma ) population is found to be determined by the dynamics of the Hg emissions if the measurement time is longer than tau <sub>e</sub>.
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