Energy Citations Database
Bookmark and Share

Bibliographic Citation

 
Document
For copies of Journal Articles, please contact the Publisher or your local public or university library and refer to the information in the Resource Relation field.
For copies of other documents, please see the Availability, Publisher, Research Organization, Resource Relation and/or Author (affiliation information) fields and/or Document Availability.
DOI http://dx.doi.org/10.1063/1.873081
Title Self-similarity of the plasma edge fluctuations
Creator/Author Carreras, B.A. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8070 (United States)] ; van Milligen, B.P. ; Pedrosa, M.A. ; Balbin, R. ; Hidalgo, C. [Asociacion Euratom-Ciemat, 28040 Madrid (Spain)] ; Newman, D.E. [Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-8070 (United States)] ; Sanchez, E. ; Frances, M. ; Garcia-Cortes, I. [Asociacion Euratom-Ciemat, 28040 Madrid (Spain)] ; Bleuel, J. ; Endler, M. [Max-Planck-Institut fuer Plasmaphysik, Euratom Association, 85740 Garching (Germany)] ; Ricardi, C. [Dipartamento di Fisica, Universita di Milano (Italy)] ; Davies, S. ; Matthews, G.F. [JET Joint Undertaking, Abingdon Oxon, OX14 3EA (United Kingdom)] ; Martines, E. ; Antoni, V. [Consorzio RFX, Padova (Italy)] ; Latten, A. ; Klinger, T. [Institut fuer Experimentelle und Angewandte Physik, Kiel (Germany)]
Publication Date1998 Oct 01
OSTI IdentifierOSTI ID: 658484
Other Number(s)Journal ID: PHPAEN; ISSN 1070-664X; TRN: TRN: 9820M0025
Resource TypeJournal Article
Resource RelationJournal Name: Physics of Plasmas; Journal Volume: 5; Journal Issue: 10; Other Information: PBD: Oct 1998
Subject70 PLASMA PHYSICS AND FUSION; FLUCTUATIONS; TURBULENCE; PLASMA; TOKAMAK DEVICES; REVERSED-FIELD PINCH DEVICES; STELLARATORS
Description/AbstractThe rescaled range analysis techniques are used to investigate long-range dependence in plasma edge fluctuations [Mandelbrot and Wallis, Water Resources Res. {bold 4}, 909 (1969)]. This technology has been applied to data from several confinement devices such as tokamaks, stellarators, and reversed-field pinch. The results reveal the self-similar character of the electrostatic fluctuations at the plasma edge with self-similarity parameters ranging from 0.62 to 0.72. These results show that the tail of the autocorrelation function decays as a power law for time lags longer than the decorrelation time and as long as times of the order of the confinement time. In cold plasma devices (T{sub e}{lt}1thinspeV at the core), there is no evidence of algebraic tails in the autocorrelation function. Some other characteristic features of the autocorrelation function and power spectrum have been investigated. All of these features are consistent with plasma transport as characterized by self-organized criticality. {copyright} {ital 1998 American Institute of Physics.}
Country of PublicationUnited States
LanguageEnglish
FormatMedium: X; Size: pp. 3632-3643
System Entry Date2008 Feb 05

Top