Selected highlights of ECH/ECCD physics studies in the TCV tokamak

T. P. Goodman, S. Coda, B. P. Duval, D. Kim, O. Sauter, F. Felici, J. Decker

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Abstract

The Tokamak a Configuration Variable, TCV, has used Electron Cyclotron Heating and Current Drive as its only auxiliary heating system for nearly two decades. In addition to basic plasma heating and current profiling, ECH and ECCD under either feedforward or real-time (feedback) control allows control of plasma parameters and MHD behaviour to aid in physics studies and measurements. This paper describes four such studies in which EC control has proved crucial - increased resolution Thomson Scattering measurements in the plasma edge, time-resolved plasma rotation modification during the sawtooth cycle, robust neoclassical tearing mode (NTM) suppression, and double pass transmission measurements of EC waves for scattering and polarization studies. The relative merits of feedforward and feedback methods for recent TCV experiments are discussed.

Original languageEnglish
Title of host publication18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC18) : Nara, Japan, 22 - 25 April 2014
EditorsS. Kobu
Place of PublicationRed Hook
PublisherCurran Associates
Pages1-8
ISBN (Print)978-1-5108-0174-5
DOIs
Publication statusPublished - 12 Mar 2015
Event18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC18) : Nara, Japan, 22 - 25 April 2014 - Nara, Japan
Duration: 22 Apr 201525 Apr 2015

Publication series

NameEPJ Web of Sciences
Volume87

Workshop

Workshop18th Joint Workshop on Electron Cyclotron Emission and Electron Cyclotron Resonance Heating (EC18) : Nara, Japan, 22 - 25 April 2014
Abbreviated titleEC18
Country/TerritoryJapan
CityNara
Period22/04/1525/04/15

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