2D laser-collision induced fluorescence in low-pressure argon discharges
Abstract
Development and application of laser-collision induced fluorescence (LCIF) diagnostic technique is presented for the use of interrogating argon plasma discharges. Key atomic states of argon utilized for the LCIF method are identified. A simplified two-state collisional radiative model is then used to establish scaling relations between the LCIF, electron density, and reduced electric fields (E/N). The procedure used to generate, detect and calibrate the LCIF in controlled plasma environments is discussed in detail. LCIF emanating from an argon discharge is then presented for electron densities spanning 109 e cm–3 to 1012 e cm–3 and reduced electric fields spanning 0.1 Td to 40 Td. Lastly, application of the LCIF technique for measuring the spatial distribution of both electron densities and reduced electric field is demonstrated.
- Authors:
-
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- L-3 Communications, San Carlos, CA (United States)
- Publication Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1237650
- Alternate Identifier(s):
- OSTI ID: 1238982
- Report Number(s):
- SAND-2015-3440J
Journal ID: ISSN 0963-0252; 583601
- Grant/Contract Number:
- AC04-94AL85000; AC04-94SL85000; SC0001939
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Plasma Sources Science and Technology
- Additional Journal Information:
- Journal Volume: 24; Journal Issue: 5; Journal ID: ISSN 0963-0252
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY
Citation Formats
Barnat, E. V., and Weatherford, B. R. 2D laser-collision induced fluorescence in low-pressure argon discharges. United States: N. p., 2015.
Web. doi:10.1088/0963-0252/24/5/055024.
Barnat, E. V., & Weatherford, B. R. 2D laser-collision induced fluorescence in low-pressure argon discharges. United States. https://doi.org/10.1088/0963-0252/24/5/055024
Barnat, E. V., and Weatherford, B. R. Fri .
"2D laser-collision induced fluorescence in low-pressure argon discharges". United States. https://doi.org/10.1088/0963-0252/24/5/055024. https://www.osti.gov/servlets/purl/1237650.
@article{osti_1237650,
title = {2D laser-collision induced fluorescence in low-pressure argon discharges},
author = {Barnat, E. V. and Weatherford, B. R.},
abstractNote = {Development and application of laser-collision induced fluorescence (LCIF) diagnostic technique is presented for the use of interrogating argon plasma discharges. Key atomic states of argon utilized for the LCIF method are identified. A simplified two-state collisional radiative model is then used to establish scaling relations between the LCIF, electron density, and reduced electric fields (E/N). The procedure used to generate, detect and calibrate the LCIF in controlled plasma environments is discussed in detail. LCIF emanating from an argon discharge is then presented for electron densities spanning 109 e cm–3 to 1012 e cm–3 and reduced electric fields spanning 0.1 Td to 40 Td. Lastly, application of the LCIF technique for measuring the spatial distribution of both electron densities and reduced electric field is demonstrated.},
doi = {10.1088/0963-0252/24/5/055024},
journal = {Plasma Sources Science and Technology},
number = 5,
volume = 24,
place = {United States},
year = {Fri Sep 25 00:00:00 EDT 2015},
month = {Fri Sep 25 00:00:00 EDT 2015}
}
Web of Science
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