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Simulation of the DIII-D beam ion heating experiment using a Monte-Carlo particle code combined with a full wave code

  • Author(s): Choi, M
  • Chan, VS
  • Green, D
  • Heidbrink, WW
  • Jaeger, EF
  • Berry, LA
  • et al.

Published Web Location

https://doi.org/10.1063/1.3273816Creative Commons 'BY' version 4.0 license
Abstract

To fully account for finite drift orbit effect of fast ions on wave-particle interaction in ion-cyclotron radio frequency (ICRF) heating experiments in tokamaks, the 5-D finite orbit Monte-Carlo plasma distribution solver ORBIT-RF is coupled with the 2-D full wave code AORSA in a self-consistent way. Comparison results of ORBIT-RF/AORSA simulation against fast-ion Dα (FIDA) measurement of fast-ion distribution as well as CQL3D/ray-tracing simulation with zero-orbit approximation in the DIII-D ICRF wave beam-ion acceleration experiment are presented. Preliminary ORBIT-RF/AORSA results suggest that finite orbit width effects may explain the outward radial shift of the spatial profile measured by FIDA. © 2009 American Institute of Physics.

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