Verification of wavelet analysis for a heat pulse propagation experiment

T. Kobayashi; S. Inagaki; S. I. Itoh; K. Ida; S. Oldenbürger; H. Tsuchiya; Y. Nagayama; K. Kawahata; H. Yamada; M. Sasaki; A. Fujisawa; K. Itoh

doi:10.1088/0741-3335/53/9/095012

Verification of wavelet analysis for a heat pulse propagation experiment

T. Kobayashi, S. Inagaki, S. I. Itoh, K. Ida, S. Oldenbürger, H. Tsuchiya, Y. Nagayama, K. Kawahata, H. Yamada, M. Sasaki, A. Fujisawa, K. Itoh

Division of Nuclear Fusion Dynamics

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

6 Citations (Scopus)

Abstract

A new wavelet analysis method is used to study heat pulse propagation in magnetic confinement plasmas. The wavelet transform is applied to estimate the time evolution of the phase delay in heat pulse propagation with a fine temporal resolution. The procedure of analysis is explained in detail. The method is examined by taking an exemplary heat pulse propagation in the Large Helical Device. Various wavelet parameters are tested and the parameter region where relevant results are obtained is identified. Temporal resolution of the phase variation is evaluated from a convergence study.

Original language	English
Article number	095012
Journal	Plasma Physics and Controlled Fusion
Volume	53
Issue number	9
DOIs	https://doi.org/10.1088/0741-3335/53/9/095012
Publication status	Published - Sept 2011

All Science Journal Classification (ASJC) codes

Nuclear Energy and Engineering
Condensed Matter Physics

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10.1088/0741-3335/53/9/095012

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abstract = "A new wavelet analysis method is used to study heat pulse propagation in magnetic confinement plasmas. The wavelet transform is applied to estimate the time evolution of the phase delay in heat pulse propagation with a fine temporal resolution. The procedure of analysis is explained in detail. The method is examined by taking an exemplary heat pulse propagation in the Large Helical Device. Various wavelet parameters are tested and the parameter region where relevant results are obtained is identified. Temporal resolution of the phase variation is evaluated from a convergence study.",

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AU - Kobayashi, T.

AU - Inagaki, S.

AU - Itoh, S. I.

AU - Ida, K.

AU - Oldenbürger, S.

AU - Tsuchiya, H.

AU - Nagayama, Y.

AU - Kawahata, K.

AU - Yamada, H.

AU - Sasaki, M.

AU - Fujisawa, A.

AU - Itoh, K.

PY - 2011/9

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AB - A new wavelet analysis method is used to study heat pulse propagation in magnetic confinement plasmas. The wavelet transform is applied to estimate the time evolution of the phase delay in heat pulse propagation with a fine temporal resolution. The procedure of analysis is explained in detail. The method is examined by taking an exemplary heat pulse propagation in the Large Helical Device. Various wavelet parameters are tested and the parameter region where relevant results are obtained is identified. Temporal resolution of the phase variation is evaluated from a convergence study.

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Verification of wavelet analysis for a heat pulse propagation experiment

Abstract

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