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Global nonlinear electromagnetic simulations of tokamak turbulence

Bottino, A.*; Scott, B. D.*; Brunner, S.*; McMillan, B. F.*; Tran, T. M.*; Vernay, T.*; Villard, L.*; Jolliet, S.; Hatzky, R.*; Peeters, A. G.*

The particle-in-cell code ORB5 is a global gyrokinetic turbulence simulation code in tokamak geometry. It solves the gyrokinetic equation in the whole plasma core, including the magnetic axis. A field-aligned filtering procedure and sophisticated noise/control and heating operators allow for accurate simulations. Recently, the code ORB5 has been extended to include self-consistent perpendicular magnetic field perturbations. The inclusion of magnetic perturbations allows for a comprehensive study of finite $$beta$$ effects on microinstability. In this paper, we present the first linear and nonlinear code results concerning electromagnetic effects on tokamak microinstabilities.

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Category:Physics, Fluids & Plasmas

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