Turbulent transport of MeV range cyclotron heated minorities as compared to alpha particles
Artikel i vetenskaplig tidskrift, 2016

We study the turbulent transport of an ion cyclotron resonance heated (ICRH), MeV range minority ion species in tokamak plasmas. Such highly energetic minorities, which can be produced in the three ion minority heating scheme (Kazakov et al (2015) Nucl. Fusion 55 032001), have been proposed to be used to experimentally study the confinement properties of fast ions without the generation of fusion alphas. We compare the turbulent transport properties of ICRH ions with that of fusion born alpha particles. Our theoretical predictions indicate that care must be taken when conclusions are drawn from experimental results: while the effect of turbulence on these particles is similar in terms of transport coefficients, differences in their distribution functions — ultimately their generation processes — make the resulting turbulent fluxes different.

transport

tokamak

turbulence

non-Maxwellian

cyclotron heating

Författare

Istvan Pusztai

Chalmers, Fysik, Subatomär fysik och plasmafysik

George Wilkie

Chalmers, Fysik, Subatomär fysik och plasmafysik

Yevgen Kazakov

Koninklijke Militaire School

Tünde Fülöp

Chalmers, Fysik, Subatomär fysik och plasmafysik

Plasma Physics and Controlled Fusion

0741-3335 (ISSN) 1361-6587 (eISSN)

Vol. 58 10 105001-

Styrkeområden

Energi

Fundament

Grundläggande vetenskaper

Ämneskategorier

Fusion, plasma och rymdfysik

DOI

10.1088/0741-3335/58/10/105001

Mer information

Senast uppdaterat

2018-04-30