%0 Journal Article
%A Massimo, F.
%A Atzeni, S.
%A Marocchino, A.
%T Comparisons of Time Explicit Hybrid Kinetic-Fluid Code Architect for Plasma Wakefield Acceleration with a full PIC code
%J Journal of computational physics
%V 327
%@ 0021-9991
%C Amsterdam
%I Elsevier
%M PUBDB-2016-04600
%P 841 - 850
%D 2016
%Z (c) Elsevier Inc. 
%X Architect, a time explicit hybrid code designed to perform quick simulations for electron driven plasma wakefield acceleration, is described. In order to obtain beam quality acceptable for applications, control of the beam-plasma-dynamics is necessary. Particle in Cell (PIC) codes represent the state-of-the-art technique to investigate the underlying physics and possible experimental scenarios; however PIC codes demand the necessity of heavy computational resources. Architect code substantially reduces the need for computational resources by using a hybrid approach: relativistic electron bunches are treated kinetically as in a PIC code and the background plasma as a fluid. Cylindrical symmetry is assumed for the solution of the electromagnetic fields and fluid equations. In this paper both the underlying algorithms as well as a comparison with a fully three dimensional particle in cell code are reported. The comparison highlights the good agreement between the two models up to the weakly non-linear regimes. In highly non-linear regimes the two models only disagree in a localized region, where the plasma electrons expelled by the bunch close up at the end of the first plasma oscillation.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000386069200041
%R 10.1016/j.jcp.2016.09.067
%U https://bib-pubdb1.desy.de/record/311051