onr:"swepub:oai:DiVA.org:kth-272041"
Search: onr:"swepub:oai:DiVA.org:kth-272041" > Key impact of finit...
- 1 of 1
- Previous record
- Next record
- To hitlist
Key impact of finite-beta and fast ions in core and edge tokamak regions for the transition to advanced scenarios
-
- Garcia, J. (author)
- CEA, IRFM, F-13108 St Paul Les Durance, France;IRFM, CEA, F-13108 St Paul Les Durance, France
-
- Bergsåker, Henric (author)
- KTH,Fusionsplasmafysik
-
- Bykov, Igor (author)
- KTH,Fusionsplasmafysik
- show more...
- show less...
- (creator_code:org_t)
- 2015-04-16
- 2015
- English.
- In: Nuclear Fusion. - : IOP PUBLISHING LTD. - 0029-5515 .- 1741-4326. ; 55:5
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Extensive linear and non-linear gyrokinetic simulations and linear magnetohydrodynamic (MHD) analyses performed for JET hybrid discharges with improved confinement have shown that the large population of fast ions found in the plasma core under particular heating conditions has a strong impact on core microturbulence and edge MHD by reducing core ion heat fluxes and increasing pedestal pressure in a feedback mechanism. In the case of the ITER like wall, it is shown how this mechanism plays a decisive role for the transition to plasma regimes with improved confinement and it can explain the weak power degradation obtained in dedicated power scans. The mechanism is found to be highly dependent on plasma triangularity as it changes the balance between the improvement in the plasma core and the edge. The feedback mechanism can play a similar role in the ITER hybrid scenario as in the JET discharges analysed due to its high triangularity plasmas and the large amount of fast ions generated in the core by the heating systems and the alpha power.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- tokomaks
- spherical tokamaks
- macroinstabilities
- plasma devices
- gyrofluid and gyrokinetic simulations
- plasma turbulence
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Nuclear Fusion (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Garcia, J.
- Bergsåker, Henri ...
- Bykov, Igor
- Elevant, Thomas
- Frassinetti, Lor ...
- Garcia Carrasco, ...
- show more...
- Hellsten, Torbjö ...
- Ivanova, Darya
- Jonsson, Thomas, ...
- Menmuir, Sheena
- Petersson, Per
- Rachlew, Elisabe ...
- Rubel, Marek
- Ström, Petter
- Tholerus, Simon, ...
- Weckmann, Armin
- Zychor, I.
- Andersson Sundén ...
- Militello Asp, E ...
- Binda, Federico, ...
- Cecconello, Marc ...
- Conroy, Sean
- Dzysiuk, Natalia
- Ericsson, Göran
- Eriksson, Jacob, ...
- Hellesen, Carl, ...
- Hjalmarsson, And ...
- Possnert, Göran, ...
- Sjöstrand, Henri ...
- Skiba, Mateusz, ...
- Weiszflog, Matth ...
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Fusion Plasma an ...
- Articles in the publication
- Nuclear Fusion
- By the university
- Royal Institute of Technology
- Uppsala University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
