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Self-Reversal in Hydrogen Lyman-α Line Profile
http://hdl.handle.net/10655/6399
http://hdl.handle.net/10655/6399f5763205-b88f-49c2-8efe-7abd378f6cc4
名前 / ファイル | ライセンス | アクション |
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pfr2010_05-S2089.pdf (288.2 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2011-05-02 | |||||
タイトル | ||||||
タイトル | Self-Reversal in Hydrogen Lyman-α Line Profile | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Self-Reversal in Hydrogen Lyman-α Line Profile | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | Lyman-α | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | self-reversal | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | reabsorption effect | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | LHD | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | intrnal diffusion barrier | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | Lyman-α | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | self-reversal | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | reabsorption effect | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | LHD | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | intrnal diffusion barrier | |||||
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 |
GOTO, Motoshi
× GOTO, Motoshi× MORITA, Shigeru× GOTO, Motoshi× MORITA, Shigeru |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A detailed spectral profile of the Lyman-α line of neutral hydrogen, i.e., the transition from n = 2 to the ground state, where n is the principal quantum number, was measured with a vacuum ultraviolet spectrometer for the plasma in the Large Helical Device. Self-reversal was observed in the spectral profile when the plasma density was increased with repetitive injection of hydrogen pellets. A one-dimensional radiation transport model was used for creating the Lyman-α spectral profile, for which an emission and absorption medium with a slab geometry and constant plasma parameters were assumed. The population density of the n = 2 level generally has a peaked spatial profile even with constant ground state density because of the reabsorption effect which is essential for the emergence of self-reversal in the spectral profile. We used the n = 2 level population distribution in the medium by Molisch et al. [Radiation Trapping in Atomic Vapours, Oxford University, Oxford, 1998] and evaluated the Lyman-α spectral profile as a function of the optical thickness. The observed line profile was found to be well fitted, for example, with a ground state density of 5.2 × 1018 m?3 and a medium thickness of 10 cm when a Lorentzian profile having a full width at half maximum of 0.0018 nm is adopted for the emission and absorption coefficients. | |||||
書誌情報 |
Plasma and Fusion Research en : Plasma and Fusion Research 巻 5, p. S2089, 発行日 2010-01-01 |
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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 | 18806821 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | <doi>info:doi/10.1585/pfr.5.S2089</doi> | |||||
権利 | ||||||
権利情報 | ? 2010 The Japan Society of Plasma Science and Nuclear Fusion Research | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | http://www.jspf.or.jp/PFR/PFR_articles/pfr2010S2/pfr2010_05-S2089.html | |||||
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 |