A simulation tool to design and test control laws for JT60-SA scenarios

Plasma free boundary simulation codes including light transport and current diffusion are an important mean to develop plasma scenarios and control algorithms in view of the operation of large tokamaks with exploratory scientific and technological purposes like ITER and JT-60SA. In particular, the intrinsic flexibility of the latter will offer the possibility to study a variety of scenarios including advanced scenarios which could be extrapolated to a steady-state demonstration of fusion power plants. The development of a numerical simulator is the object of this paper. The ultimate objective of producing a reasonably fast “flight simulator” is twofold: provide to scientists a tool for integrated scenario design including control laws and supply to tokamak operators an instrument for pulse discharge training.