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  1. B200 工学部/工学研究科
  2. B200a 雑誌掲載論文
  3. 学術雑誌

Comparison of He I line intensity ratio method and electrostatic probe for electron density and temperature measurements in NAGDIS-II

http://hdl.handle.net/2237/7050
http://hdl.handle.net/2237/7050
3a74ced1-5348-43b7-b2aa-cbd741c0212c
名前 / ファイル ライセンス アクション
PhysPlasmas_13_013301.pdf PhysPlasmas_13_013301.pdf (717.8 kB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2006-10-24
タイトル
タイトル Comparison of He I line intensity ratio method and electrostatic probe for electron density and temperature measurements in NAGDIS-II
言語 en
著者 Kajita, Shin

× Kajita, Shin

WEKO 14001

en Kajita, Shin

Search repository
Ohno, Noriyasu

× Ohno, Noriyasu

WEKO 14002

en Ohno, Noriyasu

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Takamura, Shuichi

× Takamura, Shuichi

WEKO 14003

en Takamura, Shuichi

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Nakano, Tomohide

× Nakano, Tomohide

WEKO 14004

en Nakano, Tomohide

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アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
権利
言語 en
権利情報 Copyright (2006) American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.
抄録
内容記述 The electron density and temperature obtained from the line intensity ratio method of He I (λ=667.8, 706.5, and 728.1 nm) are compared to the probe method in a divertor simulator. When a collisional radiative model that does not include the effect of the radiation transport was used for the analysis, ne obtained from the spectroscopic method was significantly higher than that from the electrostatic probe method. The discrepancy between the two methods increases with the gas pressure; in other words, it increases with the optical thickness. In the case that the effect of the radiation trapping is taken into consideration using optical escape factor, the discrepancy becomes moderate. And then, the parameters obtained from the line intensity ratio method agree with the probe method within a factor of 2 in the case that the radiation trapping was introduced with R=0.05 m, which corresponds to the column radius of the spatial profile of the excited population density. In recombining plasmas, however, it was shown that the line intensity ratios might not be appropriate because the recombining component broke the monotonic increase/decrease dependences of the line intensity ratios on ne and Te. A measurement of another He I line intensity of 447.1 nm (2^3P←4^3D) is proposed for solving the problem.
言語 en
内容記述タイプ Abstract
内容記述
内容記述 9pages
言語 en
内容記述タイプ Other
出版者
言語 en
出版者 American Institute of Physics
言語
言語 eng
資源タイプ
資源タイプresource http://purl.org/coar/resource_type/c_6501
タイプ journal article
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
DOI
関連タイプ isVersionOf
識別子タイプ DOI
関連識別子 https://doi.org/10.1063/1.2164461
ISSN
収録物識別子タイプ PISSN
収録物識別子 1070-664X
書誌情報 en : Physics of Plasmas

巻 13, 号 1, p. 013301-013301, 発行日 2006-01
フォーマット
application/pdf
著者版フラグ
値 publisher
URI
識別子 http://hdl.handle.net/2237/7050
識別子タイプ HDL
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