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Controlling the profile of ion-cyclotron-resonant ions in JET with the wave-induced pinch effect
KTH, Superseded Departments, Alfvén Laboratory.ORCID iD: 0000-0002-7142-7103
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2002 (English)In: Physical Review Letters, ISSN 0031-9007, E-ISSN 1079-7114, Vol. 89, no 11Article in journal (Refereed) Published
Abstract [en]

Experiments on the JET tokamak show that the wave-induced pinch in the presence of toroidally asymmetric waves can provide a tool for controlling the profile of ion-cyclotron-resonant He-3 ions. Direct evidence for the wave-induced pinch has been obtained from the measured gamma-ray emission profiles. Concurrent differences in the excitation of Alfven eigenmodes (AEs), sawtooth stabilization, electron temperatures, and fast-ion stored energies are observed. The measured location of the AEs and gamma-ray emission profiles are consistent with the fast-ion radial gradient providing the drive for AEs.

Place, publisher, year, edition, pages
2002. Vol. 89, no 11
Keyword [en]
TOROIDAL PLASMAS, CURRENT DRIVE, ICRF WAVES, TRANSPORT, TOKAMAKS, INJECTION
National Category
Other Engineering and Technologies
Identifiers
URN: urn:nbn:se:kth:diva-13517DOI: 10.1103/PhysRevLett.89.115004ISI: 000177676400013OAI: oai:DiVA.org:kth-13517DiVA: diva2:326008
Note
QC 20100621Available from: 2010-06-21 Created: 2010-06-21 Last updated: 2017-12-12Bibliographically approved
In thesis
1. Fast wave heating of cyclotron resonant ions in tokamaks
Open this publication in new window or tab >>Fast wave heating of cyclotron resonant ions in tokamaks
2004 (English)Doctoral thesis, comprehensive summary (Other scientific)
Place, publisher, year, edition, pages
Stockholm: KTH, 2004. xiv, 61 p.
Keyword
Fusion plasma, tokamak, RF heating, fast wave heating, fast wave current drive, ion cyclotron resonance, ICRH, ICRF, ICCD, RF induced rotation, RF induced transport, RF induced pinch, RF pinch, finite orbit width, fast wave current drive, self-consi
National Category
Other Engineering and Technologies
Identifiers
urn:nbn:se:kth:diva-3771 (URN)91-7283-780-2 (ISBN)
Public defence
2004-06-01, 00:00
Note
QC 20100622Available from: 2004-06-01 Created: 2004-06-01 Last updated: 2010-11-15Bibliographically approved

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Johnson, Thomas

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