Higher harmonics in a perturbative transport experiment

Lhd Experiment Group

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

We have used the convolution method to obtain higher harmonics of the temperature perturbation in a heating modulation experiment on LHD plasma. In comparison with predictions based on the diffusive model, amplitudes of higher harmonics (such as the seventh) decayed much more slowly as they propagated radially. Changes in the time derivative of temperature at the onset and turning-off of heating power remained much sharper after radial propagation than those predicted by the diffusion model.

Original languageEnglish
Article number1202173
JournalPlasma and Fusion Research
Volume8
DOIs
Publication statusPublished - Jan 1 2013

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harmonics
heating
convolution integrals
modulation
perturbation
temperature
propagation
predictions

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics

Cite this

Higher harmonics in a perturbative transport experiment. / Lhd Experiment Group.

In: Plasma and Fusion Research, Vol. 8, 1202173, 01.01.2013.

Research output: Contribution to journalArticle

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T1 - Higher harmonics in a perturbative transport experiment

AU - Lhd Experiment Group

AU - Inagaki, Shigeru

AU - Itoh, Sanae I.

AU - Itoh, Kimitaka

AU - Kasuya, Naohiro

AU - Kobayashi, Tatsuya

AU - Fujisawa, Akihide

AU - Tokuzawa, Tokihiko

AU - Ida, Katsumi

AU - Kubo, Shin

AU - Shimozuma, Takashi

AU - Tamura, Naoki

AU - Tsuchiya, Hayato

AU - Nagayama, Yoshio

AU - Kawahata, Kazuo

AU - Yamada, Hiroshi

AU - Komori, Akio

PY - 2013/1/1

Y1 - 2013/1/1

N2 - We have used the convolution method to obtain higher harmonics of the temperature perturbation in a heating modulation experiment on LHD plasma. In comparison with predictions based on the diffusive model, amplitudes of higher harmonics (such as the seventh) decayed much more slowly as they propagated radially. Changes in the time derivative of temperature at the onset and turning-off of heating power remained much sharper after radial propagation than those predicted by the diffusion model.

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