Modeling of dust dynamics related to Transient Impurity Events (TIEs)

Aims: Extension and optimization of code DUSTTRACK (DUST-TRACKing) [1,2] to address computationally the dynamics of test dust particles in tokamaks Motivations: o Occurrence of Transient Impurity Events (TIEs) leading to intense radiation spikes in Joint European Torus (JET) has been observed since installation of the ITER-Like Wall, after disruptions [3,4] o Measured average radiated power (1.5 MW) could be explained by a number of radiating tungsten (W) ions associated to full ablation of 100 mm-radius sphere of solid W dust [5] o Development of dedicated modeling tools to study issue of dust production, mobilization and interaction with plasma