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Evaluation of Ion Temperature and Plasma Rotation at LHD from Charge-Exchange Spectra with Photon-Statistical Weighting
http://hdl.handle.net/10655/00013492
http://hdl.handle.net/10655/00013492540dcaf8-723f-4e9c-add4-9c36f9d3ff85
名前 / ファイル | ライセンス | アクション |
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7835_PFR (918.0 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2022-10-03 | |||||
タイトル | ||||||
タイトル | Evaluation of Ion Temperature and Plasma Rotation at LHD from Charge-Exchange Spectra with Photon-Statistical Weighting | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LHD | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | main ion charge-exchange | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | helium | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | hydrogen | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | temperature | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | velocity | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | H/He ratio | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
WIELAND, Bernd
× WIELAND, Bernd× IDA, Katsumi× YOSHINUMA, Mikirou |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A new diagnostic for LHD is presented, which utilizes active charge-exchange signals from Hydrogen (main ions) and Helium (impurity ions) to derive the radial ion-temperature and ion-velocity profiles as well as the H/He ratio profile. In a sensitivity study, different models for profile fitting and measurement uncertainties are compared, which leads to first results. This covers fitting with one Gauss function and two Gauss functions as well as the inclusion of read-out noise and photon noise. Full error propagation from the measured spectra to the resulting profiles is provided by utilizing Bayesian statistics in combination with a weighted least-squares fit and boundary conditions. Reliable and accurate results were achieved for the ion-temperature profiles, which are in good agreement with the well-proven Carbon diagnostic. Concerning the quality of the velocity profiles, no statement could be made. The H/He ratio measurements in contrary lead to accurate results. Calibration with the H/He ratio of passive emission near the plasma edge just before the end of the discharge allows calculating absolute values for Helium and Hydrogen density profiles. | |||||
書誌情報 |
Plasma and Fusion Research 巻 8, 号 Special Issue 1, p. 2402097, 発行日 2013-08-15 |
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書誌的事項 | ||||||
the 22nd International Toki Conference on Cross-Validation of Experiment and Modeling for Fusion and Astrophysical Plasmas | ||||||
出版者 | ||||||
出版者 | The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1880-6821 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA12346675 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.8.2402097 | |||||
権利 | ||||||
権利情報 | (c) 2013 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1585/pfr.8.2402097 | |||||
関連名称 | Publisher version | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
NAIS | ||||||
7835 |