TST-2におけるオーム式加熱プラズマにおける電子温度アニソトロピーの測定

Y Peng¹, A Ejiri¹, K Shinohara¹

¹Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa 277-8561, Japan.

The Review of scientific instruments

|August 26, 2025

まとめ

ダブルパストンソン散乱 (TS) は,TST-2プラズマにおける電子温度アニソトロピーを成功裏に測定した. プラズマ診断を改善する新しい理論モデルと一致しています

科学分野:

プラズマ物理学
核融合エネルギー研究
診断技術

背景:

電子の温度アニソトロピーは,融合装置におけるプラズマの振る舞いを理解するために重要である.
電子温度アニソトロピーの既存の診断方法は,安全性と効率性に限界があります.
TST-2トカマックは詳細なプラズマの特徴を特定するために先進的な診断を必要とする.

研究の目的:

TST-2のための安全で効率的なトムソン分散 (TS) 診断システムを開発し,実装する.
TST-2オームプラズマの電子温度アニソトロピーを測定する.
電子の温度アニソトロピーを推定するための理論モデルを開発する.

主な方法:

TST-2用のダブルパスTS診断システムの製造,レーザーの安全性と効率的な光収集を保証する.
開発されたTSシステムを用いて電子温度アニソトロピーの実験的測定.
電場,温度,密度,効果イオン電荷などのプラズマパラメータにアニソトロピーを関連付ける理論モデルの開発.

主要な成果:

製造されたダブルパスTSシステムは安全性と性能を証明した.
TST-2オームプラズマで有意な電子温度アニソトロピーが観察されました.
開発された理論モデルは,アニソトロピーの実験的測定と定性的な合意を提供した.

結論:

ダブルパスTS診断は,TST-2で電子温度アニソトロピーを測定するのに有効です.
理論モデルは,電場とイオン電荷の不確実性に対処することによって精細化される可能性のある,アニソトロピーを推定するための貴重なツールを提供します.
この研究は,プラズマ診断の改善と融合研究におけるアニゾトロピックプラズマの行動の理解に貢献する.

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