Observation of axial neutral-gas flow reversal in an ECR plasma

Emika Abe, Kenichiro Terasaka, Shinji Yoshimura, Mitsutoshi Aramaki, Masayoshi Y. Tanaka

研究成果: ジャーナルへの寄稿記事

抄録

Axial neutral gas transport has been experimentally investigated in a partially ionized cylindrical plasma. The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass transport parallel to the magnetic field has been measured by changing the filling gas pressure. It has been found that the neutral gas flow is spatially non-uniform, and the axial flow reversal takes place under a certain circumstance. The experimental results indicate that non-uniformity of neutral gas flow field is generated as a consequence of the plasma-neutral coupling and the axial neutral transport plays an important role in the plasma structure formation.

元の言語英語
記事番号1201066
ジャーナルPlasma and Fusion Research
14
発行部数1
DOI
出版物ステータス出版済み - 1 1 2019

Fingerprint

neutral gases
gas flow
axial flow
flow velocity
cylindrical plasmas
gas transport
neutral particles
nonuniformity
laser induced fluorescence
gas pressure
flow distribution
magnetic fields
spectroscopy
ions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

これを引用

Observation of axial neutral-gas flow reversal in an ECR plasma. / Abe, Emika; Terasaka, Kenichiro; Yoshimura, Shinji; Aramaki, Mitsutoshi; Tanaka, Masayoshi Y.

:: Plasma and Fusion Research, 巻 14, 番号 1, 1201066, 01.01.2019.

研究成果: ジャーナルへの寄稿記事

Abe, Emika ; Terasaka, Kenichiro ; Yoshimura, Shinji ; Aramaki, Mitsutoshi ; Tanaka, Masayoshi Y. / Observation of axial neutral-gas flow reversal in an ECR plasma. :: Plasma and Fusion Research. 2019 ; 巻 14, 番号 1.
@article{e9ac7449907a4852a954f5e63c5e0237,
title = "Observation of axial neutral-gas flow reversal in an ECR plasma",
abstract = "Axial neutral gas transport has been experimentally investigated in a partially ionized cylindrical plasma. The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass transport parallel to the magnetic field has been measured by changing the filling gas pressure. It has been found that the neutral gas flow is spatially non-uniform, and the axial flow reversal takes place under a certain circumstance. The experimental results indicate that non-uniformity of neutral gas flow field is generated as a consequence of the plasma-neutral coupling and the axial neutral transport plays an important role in the plasma structure formation.",
author = "Emika Abe and Kenichiro Terasaka and Shinji Yoshimura and Mitsutoshi Aramaki and Tanaka, {Masayoshi Y.}",
year = "2019",
month = "1",
day = "1",
doi = "10.1585/pfr.14.1201066",
language = "English",
volume = "14",
journal = "Plasma and Fusion Research",
issn = "1880-6821",
publisher = "The Japan Society of Plasma Science and Nuclear Fusion Research (JSPF)",
number = "1",

}

TY - JOUR

T1 - Observation of axial neutral-gas flow reversal in an ECR plasma

AU - Abe, Emika

AU - Terasaka, Kenichiro

AU - Yoshimura, Shinji

AU - Aramaki, Mitsutoshi

AU - Tanaka, Masayoshi Y.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Axial neutral gas transport has been experimentally investigated in a partially ionized cylindrical plasma. The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass transport parallel to the magnetic field has been measured by changing the filling gas pressure. It has been found that the neutral gas flow is spatially non-uniform, and the axial flow reversal takes place under a certain circumstance. The experimental results indicate that non-uniformity of neutral gas flow field is generated as a consequence of the plasma-neutral coupling and the axial neutral transport plays an important role in the plasma structure formation.

AB - Axial neutral gas transport has been experimentally investigated in a partially ionized cylindrical plasma. The high-accuracy laser induced fluorescence spectroscopy is embraced to evaluate the absolute flow velocity of ions and neutral particles, and the axial flow velocity associated with the mass transport parallel to the magnetic field has been measured by changing the filling gas pressure. It has been found that the neutral gas flow is spatially non-uniform, and the axial flow reversal takes place under a certain circumstance. The experimental results indicate that non-uniformity of neutral gas flow field is generated as a consequence of the plasma-neutral coupling and the axial neutral transport plays an important role in the plasma structure formation.

UR - http://www.scopus.com/inward/record.url?scp=85063648792&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85063648792&partnerID=8YFLogxK

U2 - 10.1585/pfr.14.1201066

DO - 10.1585/pfr.14.1201066

M3 - Article

AN - SCOPUS:85063648792

VL - 14

JO - Plasma and Fusion Research

JF - Plasma and Fusion Research

SN - 1880-6821

IS - 1

M1 - 1201066

ER -