TY - JOUR

T1 - Declustering of macroparticles in long-term simulations of plasma wakefield acceleration

AU - Kargapolov, I. Yu

AU - Okhotnikov, N. V.

AU - Shalimova, I. A.

AU - Sosedkin, A. P.

AU - Lotov, K. V.

N1 - This work (including writing Secs. II and V) was supported by the Russian Science Foundation, project No. 23-12-00028. The development of the LCODE parts described in Secs. II and V was also supported in the period 2012–2025 by Budker INP with ongoing institutional funding and by Russian Science Foundation projects No. 20-12-00062 and No. 14-12-00043.

PY - 2025

Y1 - 2025

N2 - A recently developed three-dimensional version of the quasistatic code LCODE has a novel feature that enables high-accuracy simulations of the long-term evolution of waves in plasma wakefield accelerators. Equations of plasma particle motion are modified to suppress clustering and numerical heating of macroparticles, which otherwise occur because the Debye length is not resolved by the numerical grid. The previously observed effects of premature wake chaotization and wavebreaking disappear with the modified equations.

AB - A recently developed three-dimensional version of the quasistatic code LCODE has a novel feature that enables high-accuracy simulations of the long-term evolution of waves in plasma wakefield accelerators. Equations of plasma particle motion are modified to suppress clustering and numerical heating of macroparticles, which otherwise occur because the Debye length is not resolved by the numerical grid. The previously observed effects of premature wake chaotization and wavebreaking disappear with the modified equations.

UR - https://www.mendeley.com/catalogue/29e24faf-6ad2-3d96-8856-cdc84f65b9ce/

UR - https://www.scopus.com/record/display.uri?eid=2-s2.0-85219146626&origin=inward&txGid=da07cc4dd7e611c743427d22b478470e

U2 - 10.1063/5.0251688

DO - 10.1063/5.0251688

M3 - Article

VL - 32

JO - Physics of Plasmas

JF - Physics of Plasmas

SN - 1070-664X

IS - 2

M1 - 023905

ER -