Simple method for gas temperature determination in CO2-containing discharges

被引：9
|
作者：
Silva, Tiago [1 ]
Britun, Nikolay [1 ]
Godfroid, Thomas [2 ]
Snyders, Rony [1 ,2 ]
机构：
[1] Univ Mons, CIRMAP, Chim Interact Plasma Surface ChIPS, B-7000 Mons, Belgium
[2] Mat Nova Res Ctr, B-7000 Mons, Belgium
来源：
OPTICS LETTERS | 2014年 / 39卷 / 21期
关键词：
ATMOSPHERIC-PRESSURE; PLASMA; CO; LINES;
D O I：
10.1364/OL.39.006146
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple gas temperature determination method based on the line ratio between two rotational peaks from the CO Angstrom rotational emission band is reported. A formula based on CO spectral synthesis provides a way for temperature control in plasmas containing CO molecules. This approach is validated in a CO2 flowing gas surfaguide microwave discharge operating at 2.45 GHz. The gas temperature results are compared with the ones obtained using a Boltzmann plot approach, as well as using direct comparison of measured and calculated rotational spectra of the same rotational band. (C) 2014 Optical Society of America
引用
收藏
页码：6146 / 6149
页数：4
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