HE-N2 RADIOFREQUENCY DISCHARGE - INFLUENCE OF N2 ON DISCHARGE AND AFTERGLOW

被引：10
|
作者：
DEBENEDICTIS, S
DILECCE, G
GORSE, C
机构：
[1] Centro di Studio per la Chimica dei Plasmi, C.N.R. Dip. di Chimica, Università di Bari, Bari, 173 70126, Via G. Amendola
来源：
PLASMA CHEMISTRY AND PLASMA PROCESSING | 1991年 / 11卷 / 03期
关键词：
ENERGY TRANSFER; RF DISCHARGE AND AFTERGLOW; HE+N2+CO; VIBRATIONAL EXCITATION;
D O I：
10.1007/BF01458915
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
A diagnostic study of energy transfer processes in a He-N2 flowing discharge and afterglow has been performed in a radiofrequency-produced plasma cooled in a liquid nitrogen bath. Optical emission spectroscopy in the visible and infrared spectral range as well as Langmuir probe diagnostics were used. The vibrational kinetics of CO injected in such an afterglow has been examined. It shows a slow cooling of the electrons in the afterglow regime. The electron kinetics responsible for CO vibrational excitation is turned off when N2 is added to the He discharge, while that for vibrationally excited N2 molecules is turned on. The results are discussed on the basis of previous theoretical calculations and experiments on the He-N2 system.
引用
收藏
页码：335 / 355
页数：21
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