Item type |
itemtype_ver1(1) |
公開日 |
2021-11-11 |
タイトル |
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タイトル |
Application of multiple regression for sensitivity analysis of helium line emissions to the electron density and temperature in Magnum-PSI |
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言語 |
en |
著者 |
Kajita, Shin
Nishijima, Daisuke
Fujii, Keisuke
Akkermans, Gijs
van der Meiden, Hennie
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アクセス権 |
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アクセス権 |
open access |
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アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
権利 |
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言語 |
en |
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権利情報 |
This is the Accepted Manuscript version of an article accepted for publication in [Plasma Physics and Controlled Fusion]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at [https://doi.org/10.1088/1361-6587/abf36e] |
権利 |
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言語 |
en |
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権利情報 |
“This Accepted Manuscript is available for reuse under a CC BY-NC-ND licence after the 12 month embargo period provided that all the terms of the licence are adhered to” |
内容記述 |
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内容記述 |
Helium line intensities have been utilized to measure the electron density, ne, and temperature, Te, by comparing measured line intensities to a collisional-radiative model (CRM). In this study, we use multiple regression analysis to train a model of the helium line intensities and ne/Te obtained from a Thomson scattering system in the linear plasma device Magnum-PSI; based on the trained model, we predict ne and Te from line intensities. We show that this method can also obtain radial profiles of ne and Te. We discuss appropriate selections of line pairs for the prediction based on the multiple regression analysis. A big advantage of this method against the standard technique using CRM is that modeling of atomic population distributions is not required, which sometimes needs to take into account various effects such as radiation trapping, transport of helium atoms in metastable states, etc. |
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言語 |
en |
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内容記述タイプ |
Abstract |
出版者 |
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言語 |
en |
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出版者 |
IOP publishing |
言語 |
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言語 |
eng |
資源タイプ |
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資源タイプresource |
http://purl.org/coar/resource_type/c_6501 |
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タイプ |
journal article |
出版タイプ |
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出版タイプ |
AM |
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出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
関連情報 |
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関連タイプ |
isVersionOf |
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識別子タイプ |
DOI |
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関連識別子 |
https://doi.org/10.1088/1361-6587/abf36e |
収録物識別子 |
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
0741-3335 |
書誌情報 |
en : Plasma Physics and Controlled Fusion
巻 63,
号 5,
p. 055018,
発行日 2021-05
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ファイル公開日 |
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日付 |
2022-05-01 |
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日付タイプ |
Available |