Global simulations of the exit phase from the flat-top of an ITER 15MA baseline scenario. Fully predictive JINTRAC simulations with consistent treatment of D and T in the whole plasma
The integrated modelling tool JINTRAC [1] was recently updated and now has the unique capability of fully consistent treatment of Deuterium and Tritium in the whole plasma volume. In this work this is utilized with coupled core-SOL-divertor simulations performed for the ITER 15MA/5.3T DT Q=10 scenario. The work is built on previous simulations published in [2] and [3] with the additions of the EC code GRAY to simulate the EC deposition and current drive self-consistently, the first-principle transport model EDWM, the inclusion of Tungsten in the plasma and, most importantly, Deuterium and Tritium are now for the first time treated separately in the whole plasma volume. Focus is on the flat top phase of the discharge with the aim of demonstrating the possibility of achieving a fusion Q of 10 using DT pellets and pure D SOL gas puff, which is preferential as it allows a more effective use of T, while keeping within operational limits and keeping track of Tungsten sputtering and accumulation as well as Neon seeding. The same setup is also used to study the exit phase ramping down the density and current.