Effect of two-stage shattered pellet injection on tokamak disruptions

  title={Effect of two-stage shattered pellet injection on tokamak disruptions},
  author={Oskar Vallhagen and Istv{\'a}n Pusztai and Mathias Hoppe and S. L. Newton and T{\"u}nde F{\"u}l{\"o}p},
  journal={Nuclear Fusion},
An effective disruption mitigation system in a tokamak reactor should limit the exposure of the wall to localized heat losses and to the impact of high current runaway electron beams, and avoid excessive forces on the structure. We evaluate with respect to these aspects a two-stage deuterium–neon shattered pellet injection in an ITER-like plasma, using simulations with the DREAM framework (Hoppe et al 2021 Comput. Phys. Commun. 268 108098). To minimize the obtained runaway currents an optimal… 

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