München 2019 – wissenschaftliches Programm

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AKBP: Arbeitskreis Beschleunigerphysik

AKBP 10: New Accelerator Concepts

AKBP 10.2: Vortrag

Mittwoch, 20. März 2019, 11:15–11:30, HS 8

FBPIC - A spectral, quasi-3D, multi-GPU Particle-In-Cell code for plasma accelerators — •Manuel Kirchen, Soeren Jalas, Jannis Neuhaus-Steinmetz, and Andreas R. Maier — Center for Free-Electron Laser Science & Department of Physics, University of Hamburg, Luruper Chaussee 149, 22761 Hamburg, Germany

Plasma accelerators are compact high-energy particle sources allowing to accelerate charged particles to relativistic energy levels on mm length scales. Modelling the complex acceleration process requires computationally demanding Particle-In-Cell codes. These codes self-consistently solve the electromagnetic particle interaction inside the plasma. We present the latest features of FBPIC - a highly parallel Particle-In-Cell code featuring a spectral electromagnetic solver that eliminates numerical instabilities common to traditional field solvers, a quasi-3D geometry that greatly reduces the computational costs and the Lorentz-boosted frame technique that scales down the required simulation time by orders of magnitude.