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Ion temperature measurement by laser‐induced fluorescence spectroscopy in panta
Author(s) -
Arakawa Hirotyuki,
Inagaki Shigeru,
Kosuga Yusuke,
Sasaki Makoto,
Kin Fumiyoshi,
Hasamada Kazunobu,
Yamasaki Kotaro,
Kobayashi Tatsuya,
Yamada Takuma,
Nagashima Yoshihiko,
Fujisawa Akihide,
Kasuya Naohiro,
Itoh Kimitaka,
Itoh SanaeI
Publication year - 2019
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22962
Subject(s) - helicon , ion , zeeman effect , plasma , atomic physics , electron temperature , spectroscopy , distribution function , doppler effect , electron , laser , plasma diagnostics , physics , laser induced fluorescence , magnetic field , optics , thermodynamics , nuclear physics , quantum mechanics , astronomy
A laser‐induced fluorescence spectroscopy system was developed in a linear magnetized helicon plasma at Kyushu University. The thermal Doppler broadening on velocity distribution function follows the Maxwell distribution, and the averaged central ion temperature was evaluated to be ∼0.36 eV. The effect of Zeeman splitting was observed for a more accurate assessment of the measurement and is consistent with the calculation. The temperature ratio of electrons and ions, T i / T e , was evaluated to be ∼0.1. The result is valuable for evaluating the nonlinear processes of the plasma turbulence. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.