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Title: Symplectic particle-in-cell model for space-charge beam dynamics simulation

Abstract

Space-charge effects play an important role in high intensity particle accelerators and were studied using a variety of macroparticle tracking models. In this paper, we propose a symplectic particle-in-cell (PIC) model and compare this model with a recently published symplectic gridless particle model and a conventional nonsymplectic PIC model for long-term space-charge simulation of a coasting beam. Using the same step size and the same number of modes for the space-charge Poisson solver, all three models show qualitatively similar emittance growth evolutions and final phase space shapes in the benchmark examples. Quantitatively, the symplectic PIC and the symplectic gridless particle models agree with each other very well, while the nonsymplectic PIC model yields different emittance growth value. Here, using finer step size, the emittance growth from the nonsymplectic PIC converges towards that from the symplectic PIC model.

Authors:
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1439365
Alternate Identifier(s):
OSTI ID: 1461155
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Name: Physical Review Accelerators and Beams Journal Volume: 21 Journal Issue: 5; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

Citation Formats

Qiang, Ji. Symplectic particle-in-cell model for space-charge beam dynamics simulation. United States: N. p., 2018. Web. doi:10.1103/PhysRevAccelBeams.21.054201.
Qiang, Ji. Symplectic particle-in-cell model for space-charge beam dynamics simulation. United States. doi:10.1103/PhysRevAccelBeams.21.054201.
Qiang, Ji. Tue . "Symplectic particle-in-cell model for space-charge beam dynamics simulation". United States. doi:10.1103/PhysRevAccelBeams.21.054201.
@article{osti_1439365,
title = {Symplectic particle-in-cell model for space-charge beam dynamics simulation},
author = {Qiang, Ji},
abstractNote = {Space-charge effects play an important role in high intensity particle accelerators and were studied using a variety of macroparticle tracking models. In this paper, we propose a symplectic particle-in-cell (PIC) model and compare this model with a recently published symplectic gridless particle model and a conventional nonsymplectic PIC model for long-term space-charge simulation of a coasting beam. Using the same step size and the same number of modes for the space-charge Poisson solver, all three models show qualitatively similar emittance growth evolutions and final phase space shapes in the benchmark examples. Quantitatively, the symplectic PIC and the symplectic gridless particle models agree with each other very well, while the nonsymplectic PIC model yields different emittance growth value. Here, using finer step size, the emittance growth from the nonsymplectic PIC converges towards that from the symplectic PIC model.},
doi = {10.1103/PhysRevAccelBeams.21.054201},
journal = {Physical Review Accelerators and Beams},
number = 5,
volume = 21,
place = {United States},
year = {2018},
month = {5}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/PhysRevAccelBeams.21.054201

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Cited by: 1 work
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    Works referencing / citing this record:

    Incoherent effects of space charge and sum resonances on particle beams in a storage ring
    journal, November 2019