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Analysis of electron cyclotron emission with extended electron cyclotron forward modeling

S S Denk, R Fischer, H M Smith, P Helander, O Maj, E Poli, J Stober, U Stroth, W Suttrop, E Westerhof2018年Plasma Physics and Controlled FusionIF 2.2出版社

At the ASDEX Upgrade tokamak the electron temperature (Te) profile is estimated from electron cyclotron emission (ECE) using radiation transport forward modeling within the integrated data analysis scheme. For the interpretation of ECE measurements in high plasmas, it was necessary to upgrade the forward model with a fully relativistic absorption coefficient including the relativistic Maxwell–Jüttner distribution. This model intrinsically enables the interpretation of ECE measurements affected by the so-called 'pseudo radial displacement' or by harmonic overlap. A numerically efficient implementation allows for the analysis of everyday ECE measurements at ASDEX Upgrade. Various ASDEX Upgrade plasma scenarios are discussed highlighting the benefits of the present radiation transport forward modeling for routine analysis.

日本語訳

ASDEX Upgradeトカマクにおいて、電子温度(Te)プロファイルは、統合データ解析スキーム内での放射輸送前方モデリングを用いた電子サイクロトロン放射(ECE)から推定される。高密度プラズマにおけるECE測定の解釈には、相対論的マクスウェル・ユトナー分布を含む完全相対論的吸収係数を用いて前方モデルを高度化することが必要であった。このモデルは、いわゆる「擬似径方向変位」または高調波重なりの影響を受けるECE測定の解釈を本質的に可能にする。数値的に効率的な実装により、ASDEX Upgradeにおける日常的なECE測定の解析が可能となる。様々なASDEX Upgradeプラズマシナリオについて議論し、日常解析における本放射輸送前方モデリングの利点を強調する。

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asdex-upgrade低精度(概要文一致)

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Electron cyclotron emission
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