Turbulent transport of MeV range cyclotron heated minorities as compared to alpha particles
Journal article, 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

Author

Istvan Pusztai

Chalmers, Physics, Subatomic and Plasma Physics

George Wilkie

Chalmers, Physics, Subatomic and Plasma Physics

Yevgen Kazakov

Royal Military Academy

Tünde Fülöp

Chalmers, Physics, Subatomic and Plasma Physics

Plasma Physics and Controlled Fusion

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

Vol. 58 10 105001-

Areas of Advance

Energy

Roots

Basic sciences

Subject Categories

Fusion, Plasma and Space Physics

DOI

10.1088/0741-3335/58/10/105001

More information

Latest update

4/30/2018