Abstract
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.
| Original language | American English |
|---|---|
| Article number | 105001 |
| Journal | Plasma Physics and Controlled Fusion |
| Volume | 58 |
| Issue number | 10 |
| DOIs | |
| State | Published - Aug 19 2016 |
| Externally published | Yes |
ASJC Scopus subject areas
- Nuclear Energy and Engineering
- Condensed Matter Physics
Keywords
- alpha particles
- gyrokinetic modeling
- ion cyclotron resonance heating
- non-Maxwellian
- turbulent transport