B~2Σ_u~+ Excited States of the N_2~+ Ion and the Electron Temperature in the Discharge Afterglow of an Ar-N_2 Mixture

摘要

The electron energy distribution function in the afterglow of a low-pressure discharge in an Ar-N_2 mixture was experimentally found. The values of electron temperature were determined. At the initial stage of plasma decay, the electron temperature was shown to be close to the nitrogen vibrational temperature. A study was made of the afterglow observed in the bands of the first negative system of N_2~+, and it is shown that this afterglow may be attributed to collisions of argon ions with nitrogen molecules found on higher vibrational levels.