Ray-tracing modelling of ICRH at arbitrary cyclotron harmonics in large hot plasmas

D. Van Eester, Y. Louis, R. Koch

Research output: Contribution to journalArticlepeer-review

Abstract

A ray-tracing model for studying ion cyclotron resonance heating at higher cyclotron harmonics in very hot large plasmas is presented. It includes the full hot dielectric tensor for bi-Maxwellian distribution functions with parallel drift retaining temperature effects to all orders and allows for non-Maxwellian distribution functions. The model only retaining first-order temperature corrections underestimates the electron damping on the Bernstein wave. Highly energetic tails efficiently absorb fast wave power at high cyclotron harmonics. Significant alpha -particle absorption is to be expected in D-heating D-T scenarios.

Original languageEnglish
Article number009
Pages (from-to)1189-1206
Number of pages18
JournalPlasma Physics and Controlled Fusion
Volume35
Issue number9
DOIs
Publication statusPublished - 1993

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