Abstract
A solitary wave like fluctuating structure is observed in the Large Mirror Device-Upgrade (LMD-U) under relatively high neutral pressure conditions. Ion saturation current fluctuations are measured and Fourier and wavelet power spectra are calculated. Temporal behavior of fluctuation power and strength of nonlinear coupling of low frequency coherent mode and background turbulence in a specific frequency region is analyzed. This is achieved using wavelet spectral and bispectral analyses with conditional averaging.
| Original language | English |
|---|---|
| Article number | 2401082 |
| Journal | Plasma and Fusion Research |
| Volume | 6 |
| DOIs | |
| Publication status | Published - Jan 1 2011 |
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All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
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Observation of nonlinear coupling between low frequency coherent modes and background turbulence in LMD-U. / Kobayashi, Tatsuya; Inagaki, Shigeru; Arakawa, Hiroyuki; Oldenbürger, Stella; Sasaki, Makoto; Nagashima, Yoshihiko; Yamada, Takuma; Sugita, Satoru; Yagi, Masatoshi; Kasuya, Naohiro; Fujisawa, Akihide; Itoh, Sanae I.; Itoh, Kimitaka.
In: Plasma and Fusion Research, Vol. 6, 2401082, 01.01.2011.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Observation of nonlinear coupling between low frequency coherent modes and background turbulence in LMD-U
AU - Kobayashi, Tatsuya
AU - Inagaki, Shigeru
AU - Arakawa, Hiroyuki
AU - Oldenbürger, Stella
AU - Sasaki, Makoto
AU - Nagashima, Yoshihiko
AU - Yamada, Takuma
AU - Sugita, Satoru
AU - Yagi, Masatoshi
AU - Kasuya, Naohiro
AU - Fujisawa, Akihide
AU - Itoh, Sanae I.
AU - Itoh, Kimitaka
PY - 2011/1/1
Y1 - 2011/1/1
N2 - A solitary wave like fluctuating structure is observed in the Large Mirror Device-Upgrade (LMD-U) under relatively high neutral pressure conditions. Ion saturation current fluctuations are measured and Fourier and wavelet power spectra are calculated. Temporal behavior of fluctuation power and strength of nonlinear coupling of low frequency coherent mode and background turbulence in a specific frequency region is analyzed. This is achieved using wavelet spectral and bispectral analyses with conditional averaging.
AB - A solitary wave like fluctuating structure is observed in the Large Mirror Device-Upgrade (LMD-U) under relatively high neutral pressure conditions. Ion saturation current fluctuations are measured and Fourier and wavelet power spectra are calculated. Temporal behavior of fluctuation power and strength of nonlinear coupling of low frequency coherent mode and background turbulence in a specific frequency region is analyzed. This is achieved using wavelet spectral and bispectral analyses with conditional averaging.
UR - http://www.scopus.com/inward/record.url?scp=84867302548&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84867302548&partnerID=8YFLogxK
U2 - 10.1585/pfr.6.2401082
DO - 10.1585/pfr.6.2401082
M3 - Article
AN - SCOPUS:84867302548
VL - 6
JO - Plasma and Fusion Research
JF - Plasma and Fusion Research
SN - 1880-6821
M1 - 2401082
ER -