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

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

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2 Citations (Scopus)

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.

Original languageEnglish
Article number083507
JournalReview of Scientific Instruments
Volume85
Issue number8
DOIs
Publication statusPublished - Aug 2014

All Science Journal Classification (ASJC) codes

  • Instrumentation

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    Kobayashi, T., Birkenmeier, G., Wolfrum, E., Laggner, F. M., Willensdorfer, M., Stroth, U., Inagaki, S., Itoh, S. I., & Itoh, K. (2014). Method for estimating the propagation direction of a coherent plasma structure using a one-dimensional diagnostic array. Review of Scientific Instruments, 85(8), [083507]. https://doi.org/10.1063/1.4893482