Plasma and Fusion Research

Volume 12, 1401018 (2017)

Regular Articles

Measurement of Electron Density and Temperature Using Laser Thomson Scattering in PANTA
Kentaro TOMITA1), Yuta SATO1), Nima BOLOUKI1), Tatsuro SHIRAISHI1), Kiichiro UCHINO1), Yudai MIWA1,2), Tatsuya KOBAYASHI3) and Shigeru INAGAKI1,2)
1)
Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Fukuoka 816-8580, Japan
2)
Research Institute for Applied Mechanics, Kyushu University, Fukuoka 816-8580, Japan
3)
National Institute for Fusion Science, Gifu 509-5292, Japan
(Received 4 November 2016 / Accepted 17 March 2017 / Published 16 May 2017)

Abstract

Electron density (ne) and electron temperature (Te) measurements were performed via the plasma assembly for nonlinear turbulence analysis (PANTA) using the laser Thomson scattering technique. The second harmonic of Nd:YAG laser (λ = 532 nm) and an intensified charge-coupled device were used as a light source and a detector, respectively. Plasmas in PANTA were generated with Ar gas in a pressure range of 1 - 5 mTorr. The range of the applied magnetic field was 600 - 1500 G. At the center of the plasma, ne and Te ranged (4 - 20) × 1018 m−3 and 0.8 - 3 eV, respectively. Further, ne monotonically increased and Te monotonically decreased with the increasing gas pressure and magnetic field.

Keywords

PANTA, laser Thomson scattering, electron density, electron temperature, Ar plasma

DOI: 10.1585/pfr.12.1401018

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