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Date of Publication:2004-01-01

Journal:光谱学与光谱分析

Affiliation of Author(s):物理学院

Volume:24

Issue:11

Page Number:1288-1292

ISSN No.:1000-0593

Abstract:The emission spectra of OH(A(2) E-->X-2 II, O-O), O(3p(5) P-->3s S-5(2)0) and H-alpha(3P-->2S) produced by the positive pulsed corona discharge of N-2 and H2O mixture in a needle-plate reactor have been successfully recorded against a severe electromagnetic interference coming from the pulsed corona discharge at one atmosphere. The relative populations and the vibrational temperature of N2 W, v') were determined. The emission intensity of OH(A(2) Sigma-->X-2 II, 0-0) is obtained through the simulation of the emission spectra of the Deltav = + 1 vibration transition band of N-2 (C (IIu)-I-3 --> B (IIg)-I-3). Relative populations of OH(A(2)Sigma), O(3p(5)P) and H-alpha (3P) have been obtained by the emission intensity of OH(A(2) Sigma --> X-2 II, 0-0), O(3p P-5 --> 3s S-5(2)0) and H-alpha (3P --> 2S) and Einstein's transition probability. The effects of discharge voltage and pulse repetition rate and oxygen flow on the relative populations of OH(A(2)Sigma), O(3P P-5) and H-alpha (3P) are investigated.

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