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Study of impurity radiation in ASDEX Upgrade with a spatially scanning spectrometer for the VUV and visible ranges

U Wenzel, R Dux, A.R Field, B Napiontek1997年Fusion Engineering and DesignIF 1.7出版社

AbstractA combined visible and vacuum ultraviolet (VUV) scanning spectrometer for the investigation of the boundary layer of ASDEX Upgrade has been developed. A rotating mirror is used for poloidal scanning. This mirror can be tilted perpendicular to its rotation axis, enabling observation in the toroidal direction too. The broad spectral range opens a variety of investigation possibilities. Here we present poloidal radiation profiles of different ion species in the VUV. Regions of special interest such as the divertor for target erosion studies and the upper boundary for the estimation of ion penetration depths were investigated with high spatial resolution. Additionally, the application of this instrument is shown for measuring the spatial distributions of impurities injected for radiation cooling.

日本語訳

境界層の調査のために、可視光および真空紫外(VUV)走査分光器を組み合わせた装置がASDEX Upgrade用に開発された。ポロイダル走査には回転ミラーが使用される。このミラーは回転軸に垂直に傾斜させることができ、トロイダル方向の観測も可能となる。広いスペクトル範囲により、多様な調査の可能性が開かれる。ここでは、VUV領域における異なるイオン種のポロイダル放射分布を示す。ターゲット侵食研究のためのダイバータ領域や、イオン侵入深さの推定のための上部境界など、特に関心のある領域が高い空間分解能で調査された。さらに、放射冷却のために注入された不純物の空間分布測定への本装置の応用も示される。

装置

asdex-upgrade高精度(タイトル一致)

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ImpurityASDEXASDEX Upgrade
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