Laser-Induced Fluorescence Detection of Metastable Atom and Molecular Ions Produced by Controlled Electron Impact

Abstract

The laser-induced fiourescence were observed for th6 metastable 23S level of He and the ground state of the molecular ion N2' produced by the controlled electron impact. The apparent electron excitation cross section of the 23S level of He was measured in the energy range of 15-95 eV. The rotational distribution of the ground state Ni ions was a Boltzmann distribution and the rotational temperature was 326K.