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Bursty Fluctuation Characteristics in SOL/Divertor Plasmas of Large Helical Device
http://hdl.handle.net/10655/2734
http://hdl.handle.net/10655/27343e972040-4c55-4ae3-8c9b-2d3911ec496f
Item type | 研究報告書 / Research Paper(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2010-02-05 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Bursty Fluctuation Characteristics in SOL/Divertor Plasmas of Large Helical Device | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | 21 IAEA Fusion Energy Conference | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | EX/P4-20 | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_18ws | |||||
資源タイプ | research report | |||||
アクセス権 | ||||||
アクセス権 | metadata only access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
著者 |
"Ohno, N."
× "Ohno, N." |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | "Bursty electrostatic fluctuation in the scrape off layer (SOL) and the divertor region of the Large Helical Device (LHD) have been investigated by using a Langmuir probe array on a divertor plate and a reciprocating Langmuir probe. Large positive bursty events were often observed in the ion saturation current measured with a divertor probe near the divertor leg at which the magnetic line of force connected to the area of a low-field side with a short connection length. Condition averaging result of the positive bursty events indicates the intermittent feature with a rapid increase and a slow decay is similar to that of plasma blobs observed in tokamaks. On the other hand, at a striking point with a long connection length, negative spikes were observed. Statistical analysis based on probability distribution function (PDF) was employed to investigate the bursty fluctuation property. The observed scaling exponents disagree with the predictions for the self-organized criticality (SOC) paradigm." | |||||
書誌情報 |
en : Research Report NIFS-Series 発行日 2006-10-01 |
|||||
報告書番号 | ||||||
NIFS-846 | ||||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0915-633X |