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Implementation of a hybrid particle code with a PIC description in r – z and a gridless description in ϕ into OSIRIS

A. Davidson, A. Tableman, W. An, F.S. Tsung, W. Lu, J. Vieira, R.A. Fonseca, L.O. Silva, W.B. Mori
2015 Journal of Computational Physics  
We show that this algorithm is a hybrid method which uses a particles-in-cell description in r-z and a gridless description in ϕ.  ...  In this paper, we describe an implementation of this algorithm into OSIRIS using a rigorous charge conserving current deposition method to maintain the validity of Gauss's law.  ...  OSIRIS can also use higher order particle shapes so we have implemented this into the PIC part of the algorithm.  ... 
doi:10.1016/ fatcat:kgpj2xexirgxfj2mdzlmsf32ny

Integrating a ponderomotive guiding center algorithm into a quasi-static particle-in-cell code based on azimuthal mode decomposition [article]

Fei Li, Weiming An, Frank S. Tsung, Viktor K. Decyk, Warren B. Mori
2022 arXiv   pre-print
High-fidelity modeling of plasma-based acceleration (PBA) requires the use of 3D fully nonlinear and kinetic descriptions based on the particle-in-cell (PIC) method.  ...  Recently, a new hybrid QSA-PIC algorithm that combines another speedup technique known as azimuthal Fourier decomposition has been proposed and implemented.  ...  Acknowledgments This work was supported in parts by the US Department of Energy through SciDAC FNAL subcontract 644405 and contract number DE-SC0010064 and US National Science  ... 
arXiv:2203.12148v2 fatcat:ppoflyarefgovovjdwniqlacpa

A quasi-static particle-in-cell algorithm based on an azimuthal Fourier decomposition for highly efficient simulations of plasma-based acceleration: QPAD [article]

Fei Li, Weiming An, Viktor K. Decyk, Xinlu Xu, Mark J. Hogan, Warren B. Mori
2020 arXiv   pre-print
This hybrid algorithm uses a PIC description in r-z and a gridless description in ϕ. We describe a novel method that combines the quasi-static and hybrid PIC methods.  ...  Benchmarks and comparisons between a fully 3D explicit PIC code, a full 3D quasi-static code, and the new quasi-static PIC code with azimuthal decomposition are also presented.  ...  This algorithm can be viewed as a hybrid method where the PIC algorithm is used in r-z grid and a gridless method is used in φ and it is sometimes referred to as quasi-3D.  ... 
arXiv:2002.08494v1 fatcat:w7pwrcwiibfpppdewu7xlfqkei

Optimizing Laser Wakefield Acceleration in the Nonlinear Self-Guided Regime for Fixed Laser Energy [article]

A. Davidson, A. Tableman, P. Yu, W. An, F. S. Tsung, W. Lu, R. A. Fonseca, W. B. Mori
2019 arXiv   pre-print
Beams 10, 061301 (2007)] are examined in detail using the quasi-3D version of the particle-in-cell code OSIRIS.  ...  Furthermore, a bunch with 39.4pC and a maximum energy 4.6 GeV is produced for an asymmetric laser with a rapid rise time. Studies for 30 J and 100 J lasers are also presented.  ...  However, we have recently implemented and improved [3] a hybrid PIC code which is PIC in (r,z) and gridless in the azimuthal mode number, m.  ... 
arXiv:1805.08761v4 fatcat:f6pgerh6afghzkbw3zntaejwwu

Modeling of laser wakefield acceleration in Lorentz boosted frame using a Quasi-3D OSIRIS algorithm

P. Yu, A. Davidson, X. Xu, A. Tableman, V. K. Decyk, F. S. Tsung, J. Vieira, R. A. Fonseca, W. Lu, L. O. Silva, W. B. Mori
This algorithm can be interpreted as a PIC description in rz and a gridless description in φ in which the expansion into φ modes is truncated at a desired level.  ...  Phys. 228, 1803 (2009) ] that laser wakefield acceleration could be modeled efficiently using a particle-in-cell code in cylindrical coordinates if the fields and currents were expanded into Fourier modes  ...  The new charge conserving scheme makes clear that this algorithm is a hybrid scheme between a PIC description in rz and a gridless description in φ .  ... 
doi:10.1063/1.4965622 fatcat:hymvkbgddnbeday3ayykf6uk3e