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; Inagaki Shigeru; Sanae Itoh; K. Itoh

doi:10.1063/1.4893482

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, Inagaki Shigeru, Sanae Itoh, K. Itoh

Division of Nuclear Fusion Dynamics

Research output: Contribution to journal › Article › peer-review

3 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 language	English
Article number	083507
Journal	Review of Scientific Instruments
Volume	85
Issue number	8
DOIs	https://doi.org/10.1063/1.4893482
Publication status	Published - Aug 2014

All Science Journal Classification (ASJC) codes

Instrumentation

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10.1063/1.4893482

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

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.",

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AU - Kobayashi, T.

AU - Birkenmeier, G.

AU - Wolfrum, E.

AU - Laggner, F. M.

AU - Willensdorfer, M.

AU - Stroth, U.

AU - Shigeru, Inagaki

AU - Itoh, Sanae

AU - Itoh, K.

PY - 2014/8

Y1 - 2014/8

N2 - 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.

AB - 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.

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

Abstract

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