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Reconstruction of the turbulence radial profile from reflectometry phase root mean square measurements

E Gusakov, S Heuraux, A Popov, M Schubert2012年Plasma Physics and Controlled FusionIF 2.2出版社

Simple expressions allowing estimation of the turbulent density perturbation from reflectometry phase root mean square (rms) measurements and accounting for the turbulence correlation length are given. A numerical procedure for precise turbulence radial profile reconstruction for different turbulence wave number spectra and both O-mode and X-mode reflectometry is proposed. It is validated using a full-wave 1D modeling of ordinary (O) mode reflectometry in the case of arbitrary density fluctuation profiles.

日本語訳

乱流密度擾乱を位相反射計測(rms測定)から推定することを可能にし、乱流相関長を考慮した簡潔な式を示す。また、異なる乱流波数スペクトルおよびOモード・Xモード反射計測の双方に対して、乱流の動径プロファイルを精密に再構成するための数値的手順を提案する。この手法は、任意の密度揺動プロファイルを有する場合のOモード反射計測の1次元全波モデリングを用いて検証される。

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Reflectometry
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