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Kinetic Stability of the Finite Electron Temperature Z-pinch
(Fusionsplasmafysik)ORCID iD: 0000-0001-6379-1880
1997 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 39, no 4, p. 559-568Article in journal (Refereed) Published
Abstract [en]

Large Larmor radius (LLR) stability of linear m = 0 and m = 1 modes in a Z-pinch has been studied using the Vlasov-fluid model (Arber et al1994 Phys. Rev. Lett. 72 2399; 1995 Phys. Rev. Lett. 74 2698). Ions have been modelled fully kinetically through the Vlasov equation, and electrons are treated as a zero temperature, massless fluid. In the present work an improved Vlasov-fluid model is used to investigate the effect of finite electron temperature on m = 0 modes. An electron energy equation is introduced, and results for both adiabatic and isothermal dynamics are presented. It is found that finite electron temperature has a destabilizing effect in general. As a result, the Z-pinch is only weakly stabilized by LLR effects.

Place, publisher, year, edition, pages
1997. Vol. 39, no 4, p. 559-568
National Category
Natural Sciences
Research subject
Physics
Identifiers
URN: urn:nbn:se:kth:diva-240853OAI: oai:DiVA.org:kth-240853DiVA, id: diva2:1275137
Note

QCR 20190128

Available from: 2019-01-04 Created: 2019-01-04 Last updated: 2019-01-28Bibliographically approved

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http://iopscience.iop.org.focus.lib.kth.se/article/10.1088/0741-3335/39/4/004

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