Predictive simulations of operation scenarios for EAST with METIS code

Abstract

Upgraded heating and current drive (H/CD) systems have been equipped on the Experimental Advanced Superconducting Tokamak (EAST). With the upgraded H/CD systems, the operation space of EAST is extended, and the ability to achieve higher performance is improved. In this paper, a 0.5 dimension transport code named Minute Embedded Tokamak Integrated Simulator (METIS) is applied to predict the EAST operation space and to assess the current drive capability of the 4.6 GHz lower hybrid current drive system. Predictive simulation of several EAST scenarios, including steady-state high confinement mode (H-mode), advanced regime, high normalized beta and high electron temperature, are also performed with the available H/CD systems. The simulation results provide a guidance for forthcoming advanced EAST experiments.

Metis: a fast integrated tokamak modelling tool for scenario design

“…Interpretive analysis of existing discharges in view of addressing some specific topic, for instance the study of the Experimental Advanced Superconducting Tokamak (EAST) upgraded operational space with higher input power [48], the calculation of particle sources in long steady-state Tore-Supra discharges [49], the assessment of the requirements of current-drive of steady-state regimes [50], or the analysis of the Lower Hybrid heating deposition [51].…”