Characterization of the frequency ranges of the plasma edge fluctuation spectra

被引：32

作者：

Carreras, BA ^{[1
]}

Balbin, R

van Milligen, B

Pedrosa, MA

Garcia-Cortes, I

Sanchez, E

Hidalgo, C

Bleuel, J

Endler, M

Thomsen, H

Chankin, A

Davies, S

Erents, K

Matthews, GF

机构：

[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA

[2] CIEMAT, Asociac Euratom, E-28040 Madrid, Spain

[3] Max Planck Inst Plasma Phys, EURATOM Assoc, D-85740 Garching, Germany

[4] JET Joint Undertaking, Abingdon OX14 3EA, Oxon, England

来源：

PHYSICS OF PLASMAS | 1999年 / 6卷 / 12期

关键词：

D O I：

10.1063/1.873748

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

Frequency spectra of fluctuations for the ion saturation current, floating potential, and turbulent transport measured in the plasma edge of plasma confinement experiments (tokamaks and stellarators) have been analyzed to identify the frequency ranges characterized by a power dependence. Three main regions can be identified. For the intermediate frequency region, the decay of the spectra is close to 1/f, as is expected in self-organized criticality systems. This region is particularly important for the role that it plays in plasma transport and the self-similarity of the fluctuations and fluxes. The effect of plasma rotation on the decay indices has also been studied. (C) 1999 American Institute of Physics. [S1070-664X(99)00212-8].

引用

页码：4615 / 4621

页数：7

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