Continuous wave cavity ring-down spectroscopy for velocity distribution measurements in plasma

被引：8
|
作者：
McCarren, D. [1 ,2 ]
Scime, E. [1 ]
机构：
[1] W Virginia Univ, Dept Phys & Astron, Morgantown, WV 26506 USA
[2] Lockheed Martin, Palmdale, CA 93599 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 10期
基金：
美国国家科学基金会;
关键词：
LASER; FLUORESCENCE;
D O I：
10.1063/1.4932313
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We report the development of a continuous wave cavity ring-down spectroscopic (CW-CRDS) diagnostic for real-time, in situ measurement of velocity distribution functions of ions and neutral atoms in plasma. This apparatus is less complex than conventional CW-CRDS systems. We provide a detailed description of the CW-CRDS apparatus as well as measurements of argon ions and neutrals in a high-density (109 cm(-3) < plasma density < 1013 cm-3) plasma. The CW-CRDS measurements are validated through comparison with laser induced fluorescence measurements of the same absorbing states of the ions and neutrals. (C) 2015 AIP Publishing LLC.
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页数：10
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