Measurements of electron density and electron temperature of arc discharge plasmas containing metallic vapors using laser Thomson scattering

Kentaro Tomita, Shinya Yoshitake, Kiichiro Uchino, Daigo Takenaka, Hiroaki Toda, Masayuki Hikita, Katsumi Suzuki

研究成果: ジャーナルへの寄稿記事

抄録

SUMMARY Laser Thomson scattering (LTS) was applied to arc discharges generated in the atmosphere to measure electron density (n e ) and electron temperature (T e ). The electrode gap was 0.8 mm, and the electrode diameter was 1 mm. The applied voltage was 6 kV, the peak current was 600 A, and the decay time of the voltage and current was 25 μs. The spatiotemporal evolution of n e and T e was measured 10, 30, and 50 μs after discharge initiation. At these times, the obtained values of n e and T e were estimated to be in the ranges of (0.8 to 2.0) × 10 23 m -3 and 1.0 to 2.2 eV, respectively. These values were consistent with those evaluated using Saha's thermodynamic equation at 1 atm. It was also found that the decay of the arc discharge produced using the tungsten-copper electrodes was much faster than that produced using the tungsten electrodes.

元の言語英語
ページ(範囲)1-8
ページ数8
ジャーナルElectrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi)
188
発行部数4
DOI
出版物ステータス出版済み - 1 1 2014

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Electron temperature
Discharge (fluid mechanics)
Carrier concentration
Vapors
Scattering
Plasmas
Electrodes
Lasers
Tungsten
Electric potential
Thermodynamics
Copper
Temperature

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

これを引用

Measurements of electron density and electron temperature of arc discharge plasmas containing metallic vapors using laser Thomson scattering. / Tomita, Kentaro; Yoshitake, Shinya; Uchino, Kiichiro; Takenaka, Daigo; Toda, Hiroaki; Hikita, Masayuki; Suzuki, Katsumi.

:: Electrical Engineering in Japan (English translation of Denki Gakkai Ronbunshi), 巻 188, 番号 4, 01.01.2014, p. 1-8.

研究成果: ジャーナルへの寄稿記事

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abstract = "SUMMARY Laser Thomson scattering (LTS) was applied to arc discharges generated in the atmosphere to measure electron density (n e ) and electron temperature (T e ). The electrode gap was 0.8 mm, and the electrode diameter was 1 mm. The applied voltage was 6 kV, the peak current was 600 A, and the decay time of the voltage and current was 25 μs. The spatiotemporal evolution of n e and T e was measured 10, 30, and 50 μs after discharge initiation. At these times, the obtained values of n e and T e were estimated to be in the ranges of (0.8 to 2.0) × 10 23 m -3 and 1.0 to 2.2 eV, respectively. These values were consistent with those evaluated using Saha's thermodynamic equation at 1 atm. It was also found that the decay of the arc discharge produced using the tungsten-copper electrodes was much faster than that produced using the tungsten electrodes.",
author = "Kentaro Tomita and Shinya Yoshitake and Kiichiro Uchino and Daigo Takenaka and Hiroaki Toda and Masayuki Hikita and Katsumi Suzuki",
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T1 - Measurements of electron density and electron temperature of arc discharge plasmas containing metallic vapors using laser Thomson scattering

AU - Tomita, Kentaro

AU - Yoshitake, Shinya

AU - Uchino, Kiichiro

AU - Takenaka, Daigo

AU - Toda, Hiroaki

AU - Hikita, Masayuki

AU - Suzuki, Katsumi

PY - 2014/1/1

Y1 - 2014/1/1

N2 - SUMMARY Laser Thomson scattering (LTS) was applied to arc discharges generated in the atmosphere to measure electron density (n e ) and electron temperature (T e ). The electrode gap was 0.8 mm, and the electrode diameter was 1 mm. The applied voltage was 6 kV, the peak current was 600 A, and the decay time of the voltage and current was 25 μs. The spatiotemporal evolution of n e and T e was measured 10, 30, and 50 μs after discharge initiation. At these times, the obtained values of n e and T e were estimated to be in the ranges of (0.8 to 2.0) × 10 23 m -3 and 1.0 to 2.2 eV, respectively. These values were consistent with those evaluated using Saha's thermodynamic equation at 1 atm. It was also found that the decay of the arc discharge produced using the tungsten-copper electrodes was much faster than that produced using the tungsten electrodes.

AB - SUMMARY Laser Thomson scattering (LTS) was applied to arc discharges generated in the atmosphere to measure electron density (n e ) and electron temperature (T e ). The electrode gap was 0.8 mm, and the electrode diameter was 1 mm. The applied voltage was 6 kV, the peak current was 600 A, and the decay time of the voltage and current was 25 μs. The spatiotemporal evolution of n e and T e was measured 10, 30, and 50 μs after discharge initiation. At these times, the obtained values of n e and T e were estimated to be in the ranges of (0.8 to 2.0) × 10 23 m -3 and 1.0 to 2.2 eV, respectively. These values were consistent with those evaluated using Saha's thermodynamic equation at 1 atm. It was also found that the decay of the arc discharge produced using the tungsten-copper electrodes was much faster than that produced using the tungsten electrodes.

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