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Effects of Finite Orbit Width and RF-Induced Spatial Diffusion on Ion Cyclotron Emission
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.ORCID iD: 0000-0002-7142-7103
KTH, School of Electrical Engineering (EES), Fusion Plasma Physics.
2005 (English)In: Radio Frequency Power in Plasmas: 16th Topical Conference on Radio Frequency Power in Plasmas / [ed] S. J. Wukitch and P. T. Bonoli, Melville, New York: AIP Conference Proceedings , 2005, 50-53 p.Conference paper, Published paper (Refereed)
Abstract [en]

The theory of ion cyclotron emission, ICE, in tokamak plasmas has been revised by including the effects of finite orbit width and RF-induced spatial transport in the wave-particle interactions. Two mechanisms for excitation of edge localised magnetosonic modes are discussed. An inverted distribution function of suprathermal ions near the plasma edge is driving the modes. Counter current propagating waves can be excited by interacting with barely co passing ions. Co current propagating waves interacting at the inner leg only can drive the modes unstable by throwing the fast ions out of the plasma.

Place, publisher, year, edition, pages
Melville, New York: AIP Conference Proceedings , 2005. 50-53 p.
Series
AIP Conference Proceedings 787, ISSN 0094-243X ; 787
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:kth:diva-85867ISI: 000232634700008Scopus ID: 2-s2.0-33749665619ISBN: 0-7354-0276-0 (print)OAI: oai:DiVA.org:kth-85867DiVA: diva2:500190
Conference
16th Topical Conference on Radio Frequency Power in Plasmas, Park City, Utah, USA
Note
QC 20120301Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2012-03-01Bibliographically approved

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Johnson, Thomas

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