Temporal evolution of electron density and electron temperature profiles in a non-thermal atmospheric-pressure plasma measured by laser Thomson scattering

Nima Bolouki, Kentaro Tomita, Safwat Hassaballa, Yukihiko Yamagata, Kiichiro Uchino

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4 Citations (Scopus)

Abstract

The laser Thomson scattering technique has been applied for measuring the spatiotemporal changes in the electron density (ne) and electron temperature (Te) of a capacity-coupled micro-discharge generated in neon gas at near-atmospheric pressure. A significant difference has been observed in temporal behavior between ne and Te after the discharge generation. The value of ne decreases monotonically from t = 25 ns when the electrical input is truncated. On the other hand, Te is approximately 1.7 eV at 15 ns and, after this point, Te rapidly decreases to about 0.8 eV. Subsequently, Te decreases gradually. These features are discussed on the basis of the recombination processes.

Original languageEnglish
Number of pages1
JournalJapanese Journal of Applied Physics
Volume54
Issue number1
DOIs
Publication statusPublished - Jan 1 2015

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Thomson scattering
Electron temperature
temperature profiles
Atmospheric pressure
Carrier concentration
atmospheric pressure
Scattering
electron energy
Plasmas
Lasers
lasers
Temperature
Neon
temperature
neon
Discharge (fluid mechanics)
Gases
gases

All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

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abstract = "The laser Thomson scattering technique has been applied for measuring the spatiotemporal changes in the electron density (ne) and electron temperature (Te) of a capacity-coupled micro-discharge generated in neon gas at near-atmospheric pressure. A significant difference has been observed in temporal behavior between ne and Te after the discharge generation. The value of ne decreases monotonically from t = 25 ns when the electrical input is truncated. On the other hand, Te is approximately 1.7 eV at 15 ns and, after this point, Te rapidly decreases to about 0.8 eV. Subsequently, Te decreases gradually. These features are discussed on the basis of the recombination processes.",
author = "Nima Bolouki and Kentaro Tomita and Safwat Hassaballa and Yukihiko Yamagata and Kiichiro Uchino",
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T1 - Temporal evolution of electron density and electron temperature profiles in a non-thermal atmospheric-pressure plasma measured by laser Thomson scattering

AU - Bolouki, Nima

AU - Tomita, Kentaro

AU - Hassaballa, Safwat

AU - Yamagata, Yukihiko

AU - Uchino, Kiichiro

PY - 2015/1/1

Y1 - 2015/1/1

N2 - The laser Thomson scattering technique has been applied for measuring the spatiotemporal changes in the electron density (ne) and electron temperature (Te) of a capacity-coupled micro-discharge generated in neon gas at near-atmospheric pressure. A significant difference has been observed in temporal behavior between ne and Te after the discharge generation. The value of ne decreases monotonically from t = 25 ns when the electrical input is truncated. On the other hand, Te is approximately 1.7 eV at 15 ns and, after this point, Te rapidly decreases to about 0.8 eV. Subsequently, Te decreases gradually. These features are discussed on the basis of the recombination processes.

AB - The laser Thomson scattering technique has been applied for measuring the spatiotemporal changes in the electron density (ne) and electron temperature (Te) of a capacity-coupled micro-discharge generated in neon gas at near-atmospheric pressure. A significant difference has been observed in temporal behavior between ne and Te after the discharge generation. The value of ne decreases monotonically from t = 25 ns when the electrical input is truncated. On the other hand, Te is approximately 1.7 eV at 15 ns and, after this point, Te rapidly decreases to about 0.8 eV. Subsequently, Te decreases gradually. These features are discussed on the basis of the recombination processes.

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