Absolute Cross Sections for Simultaneous Ionization and Excitation ofN2by Electron Impact

Abstract

Cross sections for the excitation of the (0,0) band of the ${\mathrm{N}}_2^{+}$ first negative and the (4,1) band of the ${\mathrm{N}}_2^{+}$ Meinel system by electron impact on nitrogen have been measured. The maximum effective cross sections for the (0,0) first negative and for the (4,1) Meinel band are 1.68×${10}^{-17\mathrm{}}$ and 6.76×${10}^{-19\mathrm{}}$ ${\mathrm{cm}}^2$, respectively. The maximum cross section for both systems occurs in the energy range 90-110 eV.