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A robust method for measurement of fluctuation parallel wavenumber in laboratory plasmas
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Poli, F. M. (Francesca), Podestà, M. and Fasoli, A. (Ambrogio F.) (2009) A robust method for measurement of fluctuation parallel wavenumber in laboratory plasmas. Review of Scientific Instruments, Vol.80 (No.5). p. 3501. doi:10.1063/1.3125627 ISSN 0034-6748.
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Official URL: http://dx.doi.org/10.1063/1.3125627
Abstract
Measuring the parallel wavenumber is fundamental for the experimental characterization of electrostatic instabilities. It becomes particularly important in toroidal geometry, where spatial inhomogeneities and curvature can excite both drift instabilities, whose wavenumber parallel to the magnetic field is finite, and interchange instabilities, which typically have vanishing parallel wavenumber. We demonstrate that multipoint measurements can provide a robust method for the discrimination between the two cases.
Item Type: | Journal Article | ||||
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Subjects: | Q Science > QC Physics | ||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
Library of Congress Subject Headings (LCSH): | Plasma diagnostics -- Research, Plasma dynamics -- Research, Plasma instabilities -- Research, Plasma waves -- Research | ||||
Journal or Publication Title: | Review of Scientific Instruments | ||||
Publisher: | American Institute of Physics | ||||
ISSN: | 0034-6748 | ||||
Official Date: | 1 May 2009 | ||||
Dates: |
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Volume: | Vol.80 | ||||
Number: | No.5 | ||||
Page Range: | p. 3501 | ||||
DOI: | 10.1063/1.3125627 | ||||
Status: | Peer Reviewed | ||||
Access rights to Published version: | Open Access (Creative Commons) | ||||
Funder: | Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung [Swiss National Science Foundation] (SNSF) |
Data sourced from Thomson Reuters' Web of Knowledge
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