使用一维诊断阵列估计相干等离子体结构传播方向的方法。

Method for estimating the propagation direction of a coherent plasma structure using a one-dimensional diagnostic array.

作者信息

Kobayashi T, Birkenmeier G, Wolfrum E, Laggner F M, Willensdorfer M, Stroth U, Inagaki S, Itoh S-I, Itoh K

机构信息

Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga 816-8580, Japan.

Max Planck Institute for Plasma Physics, Boltzmannstr. 2, 85748 Garching, Germany.

出版信息

Rev Sci Instrum. 2014 Aug;85(8):083507. doi: 10.1063/1.4893482.

DOI:10.1063/1.4893482

PMID:25173269

Abstract

This article proposes a new method to evaluate basic characteristics of the dynamics of a coherent plasma structure (blob). With this method, one can evaluate the propagation angle of a blob in a two-dimensional plasma cross section as well as the blob velocity, size, and amplitude from one-dimensional data. The method is applied to blob measurements from the Lithium beam emission spectroscopy system in ASDEX-Upgrade. Statistical features of the observed blob velocities, angles of propagation, blob sizes, and amplitudes are discussed. The validity of the method is examined by comparing two values of the propagation angle that are evaluated in an independent manner.

摘要

本文提出了一种评估相干等离子体结构（团块）动力学基本特征的新方法。使用该方法，能够从一维数据评估团块在二维等离子体截面中的传播角度以及团块速度、尺寸和幅度。该方法应用于ASDEX-Upgrade装置锂束发射光谱系统的团块测量。讨论了观测到的团块速度、传播角度、团块尺寸和幅度的统计特征。通过比较以独立方式评估的两个传播角度值来检验该方法的有效性。