雨宮プローブ; 理論的背景

Material type: 文書・図像類

Author: Belitz, H. J.ほか

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Publication date: 2010-01

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Note (General)：: This probe has been developed to measure the ion temperature in the scrape-off-layer (SOL) of the tokamak boundary plasma. Since in the SOL plasma the...

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Summary, etc.：: This probe has been developed to measure the ion temperature in the scrape-off-layer (SOL) of the tokamak boundary plasma. Since in the SOL plasma the...

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Material Type: 文書・図像類
Title: 雨宮プローブ; 理論的背景
Author/Editor: Belitz, H. J.
Althausen, B.
上原和也
雨宮宏
Author Heading: Belitz, H. J.
Althausen, B.
上原和也
雨宮宏
Publication Date: 2010-01
Publication Date (W3CDTF): 2010-01
Alternative Title: Die AMEMIYA-Sonde; Theoretischer Hitergrund
Periodical title: JAEA-Research 2009-048
Text Language Code: eng
Target Audience: 一般
Note (General): This probe has been developed to measure the ion temperature in the scrape-off-layer (SOL) of the tokamak boundary plasma. Since in the SOL plasma the ion temperature is usually larger than the electron temperature ions reach to the probe with the thermal speed without considering presheeth at the probe frontier. The probe with the cylindrical shape is placed at the parallel to the magnetic field lines. Important parameters of this probe are probe length L, the ratio of L to the radius a and the mean ion Larmor radius $<$r$>$. The ion current density to the side and the end is double integrated and k is expressed analytically. When two probes with different length are placed to the parallel to the magnetic field k is estimated by the difference of the current and we can measure the temperature directly. The application examples to the SOL plasma of JFT-2M and TEXTOR are shown.
本プローブはトカマク周辺プラズマ(SOL)の正イオンの温度を測定するために開発されたものである。周辺プラズマではイオン温度は通常電子温度より高いのでプローブ前面のプリシースを考慮する必要がなくイオンはプローブに熱速度で到来すると考えてよい。プローブは円筒型で軸は磁場に平行に置くものとする。重要なパラメータはプローブの長さLと半径aの比L/aと半径と($\pi$/4)$^{1/2}$$<$$\rho$$>$ ($<$$\rho$$>$:イオンの平均ラーマ半径)の比$\kappa$である。円筒の側面,端面へのイオン電流強度は二重積分で表され$\kappa$の大きい場合には解析的な表式で表される。2本の異なる長さの円筒電極を磁場に平行に置く時互いの電流差から$\kappa$が得られそこからイオン温度が決定される。終わりにJFT-2MとTextorトカマクへの幾つかの適用例について示す。
Source: /JAEA-Research-2009-048.pdf （fulltext）
https://jopss.jaea.go.jp/pdfdata/JAEA-Research-2009-048.pdf
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 日本原子力研究開発機構 : JOPSS:JAEA Originated Papers Searching System