Author: Gold, A.R.
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TUYGBD5
A 2D Steady-State Space Charge Solver for Azimuthally Symmetric Problems of Arbitrary Degree  
 
  • A.R. Gold, A. R. Gold, S.G. Tantawi
    SLAC, Menlo Park, California, USA
 
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THPAK086 A 2D Steady-State Space Charge Solver for Azimuthally Symmetric Problems of Arbitrary Degree 3431
SUSPF072   use link to see paper's listing under its alternate paper code  
 
  • A.R. Gold, A. R. Gold, S.G. Tantawi
    SLAC, Menlo Park, California, USA
 
  Correctly and rapidly simulating the steady-state interaction between particle beams and electromagnetic fields is crucial to the design and optimization of accelerator and radiofrequency (RF) source components. Iteratively solving for the self-consistent interaction between particles and fields can prove challenging and highly susceptible to numerical noise and mesh induced instabilities. We present herein two new approaches to solving the self-consistent trajectories of particles in the presence of external and self fields. The first method reformulates the integrated self field contribution as a path integral. The second method uses a hybrid Eulerian framework and produces an interpolated continuous current density, resulting in 1-2 orders of magnitude fewer particles required to obtain an accurate solution. We conclude with benchmarking results which show this method is as accurate as state of the art PIC solvers, while running 80-120X faster.  
DOI • reference for this paper ※ https://doi.org/10.18429/JACoW-IPAC2018-THPAK086  
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