Non-linear Alfvén Eigenmode Dynamic of Burning Plasma in the Presence of Ion Cyclotron Resonance Heating
2006 (English)In: 33rd EPS Plasma Physics Conference, 2006Conference paper (Other academic)
Alfvén eigenmodes (AEs) excited by a particles in a burning plasma can degrade theheating efficiency by spatial redistribution of the resonant a particles. Changes of the orbitinvariants in phase space by collisions and other waves, such as magnetosonic waves duringion cyclotron resonance heating (ICRH), lead to changes in the phase between the as andAEs, causing a decorrelation of the interactions. ICRH lead to an increased decorrelation ofthe AE interactions and hence a stronger radial redistribution of the thermonuclear a particlesby the AEs. Renewal of the distribution function by thermonuclear reactions and lossesof a particles to the wall lead to a continuous drive of the AEs and a radial redistributionof the a particles. The redistribution results in a degradation of the heating efficiency.
Place, publisher, year, edition, pages
IdentifiersURN: urn:nbn:se:kth:diva-86001OAI: oai:DiVA.org:kth-86001DiVA: diva2:500347
33rd EPS Plasma Physics Conference, Rome 2006
QC 201203132012-02-132012-02-132012-03-13Bibliographically approved