Interaction between fast particles and turbulence

M. Albergante, J.P. Graves, T. Dannert, A. Fasoli, F. Zonca, S. Briguglio, G. Vlad, G. Fogaccia

Research output: Contribution to conferencePaper

Abstract

A systematic study of high energetic alpha particle interaction with microinstability driven turbulence (ITG) is presented. The alpha particles are considered to be passive, thus not modifying the fine structure of the turbulence, and modelled as Maxwellian distributed. Both the turbulent fields and the evolution of the alpha distribution are computed by means of an Eulerian, flux tube code. It is shown how significant transport of high pressure distributions can occur, and how the direction and the intensity of the particle flux is sensitive to the choice of the temperature scale length of the alpha distribution, due to thermodiffusive phenomena. The diffusivity of an ITER-like case is studied, starting from an analytical treatment of the density and temperature profiles, which we show to be significant. New interpretative tools, by means of a single particle following code, are also presented.
Original languageEnglish
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventJoint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas - Varenna, Italy
Duration: 1 Jan 2008 → …

Conference

ConferenceJoint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas
CountryItaly
CityVarenna
Period1/1/08 → …

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All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Albergante, M., Graves, J. P., Dannert, T., Fasoli, A., Zonca, F., Briguglio, S., ... Fogaccia, G. (2008). Interaction between fast particles and turbulence. Paper presented at Joint Varenna-Lausanne International Workshop on Theory of Fusion Plasmas, Varenna, Italy. https://doi.org/10.1063/1.3033707