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Material response due to simulated plasma disruption loads

V.N. Litunovsky, V.E. Kuznetsov, B.V. Lyublin, I.B. Ovchinnikov, A. Hassanein2000年Fusion Engineering and DesignIF 1.7出版社

AbstractThe paper is focused on the problem of understanding key items of high heat flux plasma-material interaction during abnormal events: the net power flux that reached the target surface and the nature of the target erosion. As to first the results of direct measurements of visible radiation (Δλ=400–800 nm) flux on the target surface are presented. It is shown that visible radiation power flux emitted inside spectral range Δλ=400–700 nm can be characterised by the level of PR≤1 GW/m2 typical of experiments performed at the VIKA facility during irradiation power of Pirr∼80 GW/m2. It is also shown that the existence of the strong guide magnetic field of B∼2 T results in a change in the behaviour and microstructure of the (Al) metal melt layer.

日本語訳

本論文は、異常事象中の高熱流束プラズマ・材料相互作用の主要項目を理解することに焦点を当てている。すなわち、ターゲット表面に到達した正味のパワーフラックスと、ターゲットの侵食の性質である。まず第一に、ターゲット表面上の可視放射(Δλ=400–800 nm)フラックスの直接測定結果を示す。スペクトル範囲Δλ=400–700 nm内で放出される可視放射パワーフラックスは、VIKA施設における照射パワーPirr∼80 GW/m2の実験に典型的なレベルPR≤1 GW/m2によって特徴づけられることが示されている。また、強いガイド磁場B∼2 Tの存在が、(Al)金属溶融層の挙動と微細構造の変化をもたらすことも示されている。

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Plasma disruption
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