Abstract

We present PARSEC, a 3D parallel self-consistent particle tracking program which allows electron-cloud calculations in arbitrary external fields. The program is based on an general particle tracking framework called GenTrackE [5]. The Lorentz force equation is integrated with time as the independent variable. A 3D parallel Multigrid solver computes the electric field for the drive beam in the beam frame, while the space-charge field of the electrons is computed in the lab frame. The resulting total field, obtained by superposition, acts on both the beam particles and the cloud electrons. Primary and secondary emission takes place at each time step of the calculation. This sort of computation is only possible by the use of massive parallelization of the particle dynamics and the Poisson solver in combination with modern numerical algorithms such as the Multigrid solver with Gauss-Seidel smoothing.

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