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Soft X-ray space- and time-resolving polychromator for plasma diagnostics

Eiji Ishiguro, Mikio Mimura, Tomohiko Sasano, Kuninori Sato1997年Fusion Engineering and DesignIF 1.7出版社

AbstractIn this paper we describe a polychromator which enables us to observe the time resolution of the spatial distribution of soft X-ray emissions from high temperature plasmas. The polychromator is based on the Rowland circle mount of a spherical grating. An assembly of a two-stage MCP and a fluorescent screen is used as a two-dimensional position-sensitive detector for images of various wavelengths. The images on the fluorescent screen are transferred to a charge-coupled device with a camera lens and read out with a rapid data acquisition system. The spatial distribution of Cu L emissions (about 0.95 keV) from a windowless X-ray tube has been obtained with a spectral resolution of about 5 eV.

日本語訳

本論文では、高温プラズマからの軟X線放射の空間分布を時間分解で観測することを可能にするポリクロメーターについて述べる。このポリクロメーターは、球面回折格子のローランド円マウントに基づいている。2段のマイクロチャネルプレート(MCP)と蛍光スクリーンの組立体が、様々な波長の画像に対する2次元位置敏感検出器として用いられる。蛍光スクリーン上の画像は、電荷結合素子(CCD)にカメラレンズで転写され、高速データ収集システムによって読み出される。無窓X線管からのCu L発光(約0.95 keV)の空間分布が、約5 eVのスペクトル分解能で取得された。

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Plasma diagnosticsSoft x-ray
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