Document Detail

Concentration measurement of NO using self-absorption spectroscopy of the γband system in a pulsed corona discharge.
MedLine Citation:
PMID:  22781235     Owner:  NLM     Status:  In-Data-Review    
Nitric oxide (NO) concentrations were measured using the γ band system spectrum based on the strong self-absorption effect of NO in pulsed corona discharges. The radiative transitional intensities of the NO γ band were simulated based on the theory of molecular spectroscopy. The intensities of some bands, especially γ(0,0) and γ(1,0), are weakened by the self-absorption. The correlations between the spectral self-absorption intensities and NO concentration were validated using a modified Beer-Lambert law with a combined factor K relating the branching ratio and the NO concentration, and a nonlinear index α that is applicable to the broadband system. Optical emissive spectra in pulsed corona discharges in NO and N<sub>2</sub>/He mixtures were used to evaluate the two parameters for various conditions. Good agreement between the experimental and theoretical results verifies the self-absorption behavior seen in the UV spectra of the NO γ bands.
Xiaodong Zhai; Yanjun Ding; Zhimin Peng; Rui Luo
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Applied optics     Volume:  51     ISSN:  1539-4522     ISO Abbreviation:  Appl Opt     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-07-11     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0247660     Medline TA:  Appl Opt     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4605-11     Citation Subset:  IM    
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