Interaction of the electron density fluctuations with electron cyclotron waves from the equatorial launcher in ITER

Research output: Contribution to journalArticleScientificpeer-review

Researchers

  • Antti Snicker

  • E. Poli
  • O. Maj
  • L. Guidi
  • A. Köhn
  • H. Weber
  • G. D. Conway
  • M. Henderson
  • G. Saibene

Research units

  • Max Planck Institute for Plasma Physics
  • ITER
  • Fusion for Energy

Abstract

We present a numerical investigation of electron cyclotron beams interacting with electron density fluctuations in the ITER 15 MA H-mode scenario. In particular, here we study how the beam from the equatorial launcher, which shall be utilized to influence the sawtooth instability, is affected by the fluctuations. Moreover, we present the theory and first estimates of the power that is scattered from the injected O-mode to a secondary X-mode in the presence of the fluctuations. It is shown that for ITER parameters the scattered power stays within acceptable limits and broadening of the equatorial beams is less than those from the upper launcher.

Details

Original languageEnglish
Article number014020
JournalPlasma Physics and Controlled Fusion
Volume60
Issue number1
Publication statusPublished - 1 Jan 2018
MoE publication typeA1 Journal article-refereed

ID: 16790676