A dielectric response model for FEM solutions of ICRF wave fields
2012 (English)In: Journal of Physics, Conference Series, ISSN 1742-6588, E-ISSN 1742-6596, Vol. 401, no 1, 012009- p.Article in journal (Refereed) Published
Modelling of fast wave ICRF heating in large machines with high density such as DEMO is challenging because of the short wave lengths. Therefore, fast, efficient global wave solvers are necessary. A major difficulty with calculating the wave field in a spatial dispersive medium is that the dielectric tensor becomes a function of the local wave vector, which in its turn depends on the solution. Furthermore, the solution may consist of several waves co-existing at the same location subjected to separate response functions. In order to model upshift of the parallel wave vector, higher order FLR-effects on the cyclotron absorption and TTMP damping for the electron absorption methods based on iteration, suitable for FEM codes, are proposed.
Place, publisher, year, edition, pages
2012. Vol. 401, no 1, 012009- p.
IdentifiersURN: urn:nbn:se:kth:diva-119176DOI: 10.1088/1742-6596/401/1/012009ISI: 000312549900009ScopusID: 2-s2.0-84874176875OAI: oai:DiVA.org:kth-119176DiVA: diva2:610406
13th Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, 27 August 2012 through 31 August 2012, Varenna
QC 201303112013-03-112013-03-082013-03-27Bibliographically approved