Microturbulence Simulation 2.δf Simulations of Microturbulence

Abstract

A gyrokinetic particle simulation is a powerful tool in studying tokamak microturbulence. A δf method, which is a standard method in recent gyrokinetic particle simulations, dramatically improves an efficiency of a particle simulation by reducing a particle noise, and full torus turbulence simulations are enabled. In this paper, the δf method is reviewed, and issues in full torus gyrokinetic particle simulations are discussed.