Change search
ReferencesLink to record
Permanent link

Direct link
Statistics of low-frequency plasma fluctuations in a simple magnetized torus
2003 (English)In: Physics of Plasmas, ISSN 1070-664X, Vol. 10, no 7, 2686-2695 p.Article in journal (Refereed) Published
Abstract [en]

Statistical analysis is performed on time series of plasma potential and electron pressure fluctuations for two particular plasma states in a simple magnetized torus. In spite of the occurrence of cyclic trends in the signals, the analysis demonstrates the existence of long-range dependence on much longer time-scales than the plasma confinement time, and both Gaussian and non-Gaussian self-affinity is demonstrated in the probability distribution functions (PDFs) of increasingly coarse grained time series. Non-Gaussian PDFs for electron pressure fluctuations p are believed to arise from a nonlinear relationship between p and the plasma potential V. Non-Gaussian PDFs for V are well approximated by distributions derived from extreme value statistics.

Place, publisher, year, edition, pages
2003. Vol. 10, no 7, 2686-2695 p.
Keyword [en]
probe measurements, self-similarity, range, transport, universality, temperature, dependence
URN: urn:nbn:se:kth:diva-22599DOI: 10.1063/1.1577567ISI: 000183585500009OAI: diva2:341297
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Ratynskaia, Svetlana V.
In the same journal
Physics of Plasmas

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 8 hits
ReferencesLink to record
Permanent link

Direct link