Determination of the electron density in an argon plasma jet using absolute measurements of continuum radiation
- Author
- Leila Taghizadeh, Joost van der Mullen, Anton Nikiforov (UGent) and Christophe Leys (UGent)
- Organization
- Abstract
- We present a method to determine the electron density, n(e), of an argon plasma jet using the continuum radiation. The radiation measurements are calibrated with a standard tungsten filament lamp. Due to the filamentary nature of these plasmas, it is not possible to use the spectral radiance Wm(-2) nm(-1) sr(-1) as the radiometric quantity. Instead we work with the spectral irradiance Wm(-2) nm(-1). As the ionization degree is low, the continuum radiation is predominantly generated by interactions of electron with atoms; the influence of electron-ion interactions can be neglected. The method provides n(e) values of about 7 x 10(19) m(-3) in the active zone for an argon plasma created by a sinusoidal peak to peak voltage of 10 kV. Comparison with the n(e) values determined via the current density shows a fair agreement; this comparison can only be done for the region between the electrodes. In the afterglow region, where the current-density method cannot be applied, we can still use the continuum radiation to determine n(e). It is observed that n(e) decreases in the afterglow direction down to 2 x 10(17) m(-3).
- Keywords
- TEMPERATURE, THOMSON SCATTERING, DISCHARGE, EMISSION, SURFACE, MODEL, atmospheric pressure plasma, electron-atom generated continuum, low detection limits, spectral irradiance
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Citation
Please use this url to cite or link to this publication: http://hdl.handle.net/1854/LU-7065700
- MLA
- Taghizadeh, Leila, et al. “Determination of the Electron Density in an Argon Plasma Jet Using Absolute Measurements of Continuum Radiation.” PLASMA PROCESSES AND POLYMERS, vol. 12, no. 8, 2015, pp. 799–807, doi:10.1002/ppap.201400203.
- APA
- Taghizadeh, L., van der Mullen, J., Nikiforov, A., & Leys, C. (2015). Determination of the electron density in an argon plasma jet using absolute measurements of continuum radiation. PLASMA PROCESSES AND POLYMERS, 12(8), 799–807. https://doi.org/10.1002/ppap.201400203
- Chicago author-date
- Taghizadeh, Leila, Joost van der Mullen, Anton Nikiforov, and Christophe Leys. 2015. “Determination of the Electron Density in an Argon Plasma Jet Using Absolute Measurements of Continuum Radiation.” PLASMA PROCESSES AND POLYMERS 12 (8): 799–807. https://doi.org/10.1002/ppap.201400203.
- Chicago author-date (all authors)
- Taghizadeh, Leila, Joost van der Mullen, Anton Nikiforov, and Christophe Leys. 2015. “Determination of the Electron Density in an Argon Plasma Jet Using Absolute Measurements of Continuum Radiation.” PLASMA PROCESSES AND POLYMERS 12 (8): 799–807. doi:10.1002/ppap.201400203.
- Vancouver
- 1.Taghizadeh L, van der Mullen J, Nikiforov A, Leys C. Determination of the electron density in an argon plasma jet using absolute measurements of continuum radiation. PLASMA PROCESSES AND POLYMERS. 2015;12(8):799–807.
- IEEE
- [1]L. Taghizadeh, J. van der Mullen, A. Nikiforov, and C. Leys, “Determination of the electron density in an argon plasma jet using absolute measurements of continuum radiation,” PLASMA PROCESSES AND POLYMERS, vol. 12, no. 8, pp. 799–807, 2015.
@article{7065700,
abstract = {{We present a method to determine the electron density, n(e), of an argon plasma jet using the continuum radiation. The radiation measurements are calibrated with a standard tungsten filament lamp. Due to the filamentary nature of these plasmas, it is not possible to use the spectral radiance Wm(-2) nm(-1) sr(-1) as the radiometric quantity. Instead we work with the spectral irradiance Wm(-2) nm(-1). As the ionization degree is low, the continuum radiation is predominantly generated by interactions of electron with atoms; the influence of electron-ion interactions can be neglected. The method provides n(e) values of about 7 x 10(19) m(-3) in the active zone for an argon plasma created by a sinusoidal peak to peak voltage of 10 kV. Comparison with the n(e) values determined via the current density shows a fair agreement; this comparison can only be done for the region between the electrodes. In the afterglow region, where the current-density method cannot be applied, we can still use the continuum radiation to determine n(e). It is observed that n(e) decreases in the afterglow direction down to 2 x 10(17) m(-3).}},
author = {{Taghizadeh, Leila and van der Mullen, Joost and Nikiforov, Anton and Leys, Christophe}},
issn = {{1612-8850}},
journal = {{PLASMA PROCESSES AND POLYMERS}},
keywords = {{TEMPERATURE,THOMSON SCATTERING,DISCHARGE,EMISSION,SURFACE,MODEL,atmospheric pressure plasma,electron-atom generated continuum,low detection limits,spectral irradiance}},
language = {{eng}},
number = {{8}},
pages = {{799--807}},
title = {{Determination of the electron density in an argon plasma jet using absolute measurements of continuum radiation}},
url = {{http://doi.org/10.1002/ppap.201400203}},
volume = {{12}},
year = {{2015}},
}
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