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Imaging x-ray crystal spectrometer on EAST

Yuejiang Shi, Fudi Wang, Baonian Wan, Manfred Bitter, Sanggon Lee, Jungyo Bak, Kennith Hill, Jia Fu, Yingying Li, Wei Zhang2010年Plasma Physics and Controlled FusionIF 2.2出版社

A high-resolution imaging x-ray crystal spectrometer is described for implementation on the EAST tokamak to provide spatially and temporally resolved data on the ion temperature, electron temperature and poloidal plasma rotation. These data are derived from observations of the satellite spectra of helium-like argon, Ar XVII, which is the dominant charge state for electron temperatures in the range from 0.4 to 3.0 keV and which is accessible to EAST. Employing a novel design, which is based on the imaging properties of spherically bent crystals, the spectrometers will provide spectrally and spatially resolved images of the plasma for all experimental conditions, which include ohmically heated discharges as well as plasmas with rf and neutral-beam heating. The experimental setup and initial experimental results are presented.

日本語訳

高分解能イメージングX線分光器がEASTトカマクに実装するために記述されており、イオン温度、電子温度、およびポロイダルプラズマ回転に関する空間的および時間的に分解されたデータを提供する。これらのデータは、ヘリウム様アルゴン(Ar XVII)の衛星スペクトルの観測から得られ、これは0.4〜3.0 keVの電子温度範囲で支配的な電荷状態であり、EASTでアクセス可能である。球面湾曲結晶のイメージング特性に基づく新しい設計を採用することにより、この分光器は、オーミック加熱放電およびRF加熱や中性粒子ビーム加熱を含むプラズマを含むすべての実験条件において、プラズマのスペクトル的および空間的に分解された画像を提供する。実験装置のセットアップと初期の実験結果が提示される。

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