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Determination of the Major Impurity Radiators in the Reheat Mode Discharges in the Compact Helical System
http://hdl.handle.net/10655/6333
http://hdl.handle.net/10655/633394ecb13a-3016-4e13-bc4b-88f80f93744b
名前 / ファイル | ライセンス | アクション |
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2_S1062.pdf (582.1 kB)
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Item type | 学術雑誌論文 / Journal Article_02(1) | |||||
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公開日 | 2011-03-07 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Determination of the Major Impurity Radiators in the Reheat Mode Discharges in the Compact Helical System | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | CHS | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | reheat mode | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | impurity | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | bolometer | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | pyroelectric detector | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | AXUV photodiode | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | VUV spectrometer | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | spectral sensitivity | |||||
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 |
SUZUKI, Chihiro
× SUZUKI, Chihiro× AKIYAMA, Tsuyoshi× FUJISAWA, Akihide× IDA, Katsumi× ISOBE, Mitsutaka× MATSUOKA, Keisuke× MINAMI, Takashi× NAGAOKA, Kenichi× NISHIMURA, Shin× OKAMURA, Shoichi× PETERSON, Byron J.× SHIMIZU, Akihiro× TAKAHASHI, Chihiro× TOI, Kazuo× YOSHIMURA, Yasuo |
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抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | Radiation brightness and impurity behaviors have been studied for reheat mode discharges in the Compact Helical System (CHS) by three different types of impurity diagnostics. Total radiation power measured by a pyroelectric detector significantly reduces after entering the reheat mode, whereas the line-averaged radiation brightness measured by an absolute extreme ultraviolet (AXUV) photodiode array increases especially for a center viewing chord due to the impurity accumulation in the plasma core. One possible reason for this opposite behavior between the two bolometric detectors is the reduced sensitivity of the AXUV photodiode for lower energy photons in vacuum ultraviolet (VUV) region. This speculation is supported by temporal evolutions of VUV spectra measured by a grazing incidence spectrometer. These results demonstrate that the comparison of three impurity diagnostics would be beneficial to the determination of the major impurity radiators and a comprehensive understanding of impurity behaviors in the reheat mode discharges. | |||||
書誌情報 |
en : Plasma and Fusion Research 巻 Vol.2, p. S1062-1 -S1062-4, 発行日 2007-01-01 |
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出版者 | ||||||
出版者 | プラズマ・核融合学会 | |||||
DOI | ||||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1585/pfr.2.S1062 | |||||
権利 | ||||||
権利情報 | ? 2007 The Japan Society of Plasma Science and Nuclear Fusion Research |