Self-consistent calculation of the effects of RF injection in the HHFW heating regimes on the evolution of fast ions in toroidal plasmas

A critical question for the use of ion cyclotron range of frequency (ICRF) heating in the ITER device and beyond is interaction of fast waves with energetic ion populations from neutral beam injection (NBI), fusion reactions, and minority ions accelerated by the RF waves themselves. Several experime...

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Bibliographic Details
Published in:EPJ Web of conferences 2017-01, Vol.157, p.3004
Main Authors: Bertelli, Nicola, Gorelenkova, Marina, Podesta, Mario, Valeo, Ernest, Green, David, Fredrickson, Eric
Format: Article
Language:English
Subjects:
Beam injection
Computer simulation
Cyclotron frequency
Cyclotrons
Heating
Ion cyclotron radiation
Ion distribution
Neutral beams
Plasmas
Toroidal plasmas
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Summary:A critical question for the use of ion cyclotron range of frequency (ICRF) heating in the ITER device and beyond is interaction of fast waves with energetic ion populations from neutral beam injection (NBI), fusion reactions, and minority ions accelerated by the RF waves themselves. Several experiments have demonstrated that the interaction between fast waves and fast ions can indeed be strong enough to significantly modify the NB ion population. To model the RF/fast ion interaction and the resulting fast ion distribution, a recent extension of the full wave solver TORIC v.5 that includes non-Maxwellian effects has been combined with the Monte Carlo NUBEAM code through an RF “kick” operator. In this work, we present an initial verification of the NUBEAM RF “kick” operator for high harmonic fast wave (HHFW) heating regime in NSTX plasma.
ISSN:2100-014X
2101-6275
2100-014X
DOI:10.1051/epjconf/201715703004