ECRH and ECCD simulations for shaped plasmas in TCV
Electron cyclotron resonance heating (ECRH) and ECCD calculations developed in preparation for experiments on Tokamak à configuration variable (TCV) are reviewed, with emphasis on profile control of shaped plasmas through heating and CD. The calculations are done with the coupled codes Onetwo (transport), Toray (ray tracing) and CQL3D (Fokker-Planck). Various aspects are studied: ECCD efficiencies in TCV conditions, sensitivity of X3 top launch heating efficiency on geometry, evolution of a heated plasma, scenarios for the simultaneous use of X2 and X3. The TCV tokamak is presently being equipped with a total of 4.5 MW ECRH, proceeding in two steps. Second harmonic ECRH and ECCD will be available initially to be used for profile control through localized heating and CD (82.7 GHz, 3 MW, 2 s, 6 launchers with variable toroidal and poloidal launch angles). In a second stage, third harmonic ECRH at 118 GHz (1.5 MW, 2 s) with high density heating potential will be installed.
Bibliographic Reference: Article: Bulletin of the American Physical Society, Vol. 41 (1996) No. 7, p. 1514
Record Number: 199710419 / Last updated on: 1997-04-23
Original language: en
Available languages: en