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Electric probes for plasmas: The link between theory and instrument
2002 (English)In: Review of Scientific Instruments, ISSN 0034-6748, E-ISSN 1089-7623, Vol. 73, no 10, 3409-3439 p.Article, review/survey (Refereed) Published
Abstract [en]

Electric probe methods for diagnostics of plasmas are reviewed with emphasis on the link between the appropriate probe theories and the instrumental design. The starting point is an elementary discussion of the working principles and a discussion of the physical quantities that can be measured by the probe method. This is followed by a systematic classification of the various regimes of probe operation and a summary of theories and methods for measurements of charged particle distributions. Application of a single probe and probe clusters for measurements of fluid observables is discussed. Probe clusters permit both instantaneous and time-averaged measurements without sweeping the probe voltage. Two classes of applications are presented as illustrations of the methods reviewed. These are measurements of cross sections and collision frequencies (plasma electron spectroscopy), and measurements of fluctuations and anomalous transport in magnetized plasma.

Place, publisher, year, edition, pages
2002. Vol. 73, no 10, 3409-3439 p.
Keyword [en]
cylindrical langmuir probes, energy-distribution function, low-temperature plasma, strongly magnetized plasma, retarding-field analyzer, motion-limited regime, tokamak edge plasmas, i-v-characteristics, electrostatic fluctuations, numerical differentiation
URN: urn:nbn:se:kth:diva-21922ISI: 000178257400001OAI: diva2:340620
QC 20100525Available from: 2010-08-10 Created: 2010-08-10Bibliographically approved

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Ratynskaia, Svetlana V.
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