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Updated: Jul 18, 2026

Spatial Separation of Molecular Conformers and Clusters
Published on: January 9, 2014
[Study on concentration modulation spectra of the molecular ion beam by AC glow discharge]
Dian-Ping Sun1, Yi Zhu, Xiao-Hua Yang
1Key Laboratory of Optical and Magnetic Resonance Spectroscopy, Ministry of Education, and Department of Physics, East China Normal University, Shanghai.
Abstract:
An experimental apparatus using an AC discharge was developed for producing molecular ion beam. The emission spectral intensity of N2+ is stronger than that of N2, and a very high ratio of N2+ (B)/N2 (C) up to 6:1, was achieved in N2 discharge. The effects and processes of N2 discharge, and the concentration modulation spectra were studied. The vibrational temperature and rotational temperature of N2+ molecular ions beam were calculated to be 3 310 and 282 K respectively from the emission spectra.
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