磁化等离子体中结构倾斜的测定.二维时间延迟估算
Determination of structure tilting in magnetized plasmas - Time delay estimation in two dimensions
摘要：
时间延迟估计（TDE）是研究聚变等离子体极向流的一种常用技术。本文的工作是A. Bencze和S. Zoletnik 2005和B. Tál等人，2011年。从理论和实验比较的角度来看，基于坚实的数学基础来估计TDE的统计特性似乎是重要的。本文利用二维等离子体边缘相干湍流结构模型，给出了TDE方差的解析推导，并给出了确定结构倾斜角的显式方法。作为示范，这种方法，然后应用于准二维束发射光谱（BES）在TEXTOR托卡马克测量的结果。
英文摘要：
Time delay estimation (TDE) is a well-known technique to investigate poloidal flows in fusion plasmas. The present work is an extension of the earlier works of A. Bencze and S. Zoletnik 2005 and B. Tál et al. 2011. From the prospective of the comparison of theory and experiment it seem to be important to estimate the statistical properties of the TDE based on solid mathematical groundings. This paper provides analytic derivation of the variance of the TDE using a two-dimensional model for coherent turbulent structures in the plasma edge and also gives an explicit method for determination of the tilt angle of structures. As a demonstration this method is then applied to the results of a quasi-2D Beam Emission Spectroscopy (BES) measurement performed at the TEXTOR tokamak.
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