Fourier-Analysis of Sawtooth Heat Pulse-Propagation and Comparison with Other Methods Using Jet Data

TitleFourier-Analysis of Sawtooth Heat Pulse-Propagation and Comparison with Other Methods Using Jet Data
Publication TypeJournal Article
Year of Publication1992
AuthorsP. Mantica, F. De Luca, G. Gorini, A. Jacchia, G.MD Hogeweij, N.JL Cardozo, G.J Kramer, A.C.C. Sips
JournalNuclear Fusion
Volume32
Number12
Pagination2203-2215
Date PublishedDec
ISBN Number0029-5515
Abstract

A new method for the analysis of sawtooth heat pulse propagation is presented. The method is based on Fourier analysis of data where the statistical noise is reduced by a suitable noise reduction procedure. Besides the value of the incremental heat diffusivity (chi(inc)), information on the magnitude of non-diffusive transport may be extracted, depending on the quality of the data. The method is illustrated using JET data. A comparison is made with two other methods of analysis of sawtooth heat pulse propagation in use at JET, and good agreement is found among the chi(inc) values obtained.

DOI10.1088/0029-5515/32/12/i10
PID

3dfd59e6f6442cabf0c46a133fde6221

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