uu.seUppsala University Publications
Change search
ReferencesLink to record
Permanent link

Direct link
The effects of sheared toroidal rotation on stability limits in tokamak plasmas
Uppsala University, Disciplinary Domain of Science and Technology, Physics, Department of Physics and Astronomy, Space Plasma Physics.
2011 (English)In: Plasma Physics and Controlled Fusion, ISSN 0741-3335, E-ISSN 1361-6587, Vol. 53, no 12, 125002- p.Article in journal (Refereed) Published
Abstract [en]

Sheared toroidal rotation is found to increase the ideal external kink stability limit, thought to be the ultimate performance limit in fusion tokamaks. However, at rotation speeds approaching a significant fraction of the Alfven speed, the toroidal rotation shear drives a Kelvin-Helmholtz-like global plasma instability. Optimizing the rotation profile to maximize the pressure before encountering external kink modes, but simultaneously avoiding flow-driven instabilities, can lead to a window of stability that might be attractive for operating future high-performance fusion devices such as a spherical tokamak component test facility.

Place, publisher, year, edition, pages
2011. Vol. 53, no 12, 125002- p.
National Category
Physical Sciences
URN: urn:nbn:se:uu:diva-168417DOI: 10.1088/0741-3335/53/12/125002ISI: 000298644000045OAI: oai:DiVA.org:uu-168417DiVA: diva2:499214
Available from: 2012-02-13 Created: 2012-02-10 Last updated: 2012-10-11Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Wahlberg, Christer
By organisation
Space Plasma Physics
In the same journal
Plasma Physics and Controlled Fusion
Physical Sciences

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: 518 hits
ReferencesLink to record
Permanent link

Direct link