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JET far-infrared interferometer/polarimeter diagnostic system—40 years of lessons learned

A Boboc, J Macdonald, R Felton, M J Brown, W Studholme, S Cramp, the JET Operations Team2024年8月Plasma Physics and Controlled FusionIF 2.2出版社

Originally designed for 5 years of plasma operations, the JET far infrared interferometer/polarimeter diagnostic system was still operating at full capability nearly 40 years later in ITER-relevant conditions (e.g. metal wall, tungsten divertor) for multiple D–T campaigns, albeit with significantly lower neutron fluences. The original design had to be adapted substantially over the years due to machine changes, leading to reduced signal and access to mirrors etc, and the diagnostics still worked due to the excellent dynamic range of the detectors. This paper will discuss invaluable lessons learned from designing, operating, optimising and enhancing such a complex system and how these can be used for developing a new class of laser-based diagnostics for next-generation reactor-grade machines.

日本語訳

当初は5年間のプラズマ運転用に設計されたJET遠赤外線干渉計/偏光計診断システムは、約40年後もなお、ITER関連条件(例:金属壁、タングステンダイバータ)下での複数のD–Tキャンペーンにおいて、完全な能力で動作し続けていた。とはいえ、中性子フルエンスは大幅に低かった。元の設計は、装置の変更により長年にわたって大幅に適応させることが必要となり、ミラーなどへの信号とアクセスが低下したが、検出器の優れたダイナミックレンジにより、診断システムは依然として機能した。本論文は、このような複雑なシステムの設計、運用、最適化、および強化から得られた貴重な教訓と、それらを次世代の炉級マシンのための新しいクラスのレーザーベース診断装置の開発にどのように活用できるかについて議論する。

装置

jet高精度(タイトル一致)iter低精度(概要文一致)

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JETPlasma diagnosticsInterferometer
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