Advanced

Simultaneous computation of intrabunch and interbunch collective beam motions in storage rings

Skripka, Galina LU ; Nagaoka, Ryutaro; Klein, Marit; Cullinan, Francis and Fernandes Tavares, Pedro LU (2016) In Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment 806. p.221-230
Abstract
We present the multibunch tracking code mbtrack developed to simulate, in 6-dimensional phase space, single- and multibunch collective instabilities driven by short- and long-range wakefields in storage rings. Multiple bunches, each composed of a large number of macroparticles, are tracked, allowing simulation of both intra- and interbunch motions. Besides analytical impedance models, the code allows

employment of numerical wake potentials computed with electromagnetic (EM) field solvers. The corresponding impedances are fitted to a number of known analytical functions and the coefficients obtained in the fit are used as an input to the code. mbtrack performs a dynamic treatment of long-range resistive-wall and harmonic cavity... (More)
We present the multibunch tracking code mbtrack developed to simulate, in 6-dimensional phase space, single- and multibunch collective instabilities driven by short- and long-range wakefields in storage rings. Multiple bunches, each composed of a large number of macroparticles, are tracked, allowing simulation of both intra- and interbunch motions. Besides analytical impedance models, the code allows

employment of numerical wake potentials computed with electromagnetic (EM) field solvers. The corresponding impedances are fitted to a number of known analytical functions and the coefficients obtained in the fit are used as an input to the code. mbtrack performs a dynamic treatment of long-range resistive-wall and harmonic cavity fields, which are likely to be the two major factors impacting multibunch collective motions in many present and future ring-based light sources. Furthermore, it is capable of simulating beam-ion interactions as well as transverse bunch-by-bunch feedback. We describe the physical effects considered in the code and their implementation, which makes use of parallel

processing to significantly shorten the computation time. mbtrack is benchmarked against other codes and applied to the MAX IV 3 GeV ring as an example, where the importance of the interplay of various physical effects as well as coupling among different degrees of freedom is demonstrated. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Particle tracking, storage rings, collective effects, harmonic cavities
in
Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment
volume
806
pages
221 - 230
publisher
Elsevier
external identifiers
  • wos:000364856100031
  • scopus:84945566131
ISSN
0167-5087
DOI
10.1016/j.nima.2015.10.029
language
English
LU publication?
yes
id
e82254da-c755-4dab-99b1-6fe9c8923cf1 (old id 8165690)
date added to LUP
2015-11-06 22:22:19
date last changed
2017-04-02 03:02:10
@article{e82254da-c755-4dab-99b1-6fe9c8923cf1,
  abstract     = {We present the multibunch tracking code mbtrack developed to simulate, in 6-dimensional phase space, single- and multibunch collective instabilities driven by short- and long-range wakefields in storage rings. Multiple bunches, each composed of a large number of macroparticles, are tracked, allowing simulation of both intra- and interbunch motions. Besides analytical impedance models, the code allows<br/><br>
employment of numerical wake potentials computed with electromagnetic (EM) field solvers. The corresponding impedances are fitted to a number of known analytical functions and the coefficients obtained in the fit are used as an input to the code. mbtrack performs a dynamic treatment of long-range resistive-wall and harmonic cavity fields, which are likely to be the two major factors impacting multibunch collective motions in many present and future ring-based light sources. Furthermore, it is capable of simulating beam-ion interactions as well as transverse bunch-by-bunch feedback. We describe the physical effects considered in the code and their implementation, which makes use of parallel<br/><br>
processing to significantly shorten the computation time. mbtrack is benchmarked against other codes and applied to the MAX IV 3 GeV ring as an example, where the importance of the interplay of various physical effects as well as coupling among different degrees of freedom is demonstrated.},
  author       = {Skripka, Galina and Nagaoka, Ryutaro and Klein, Marit and Cullinan, Francis and Fernandes Tavares, Pedro},
  issn         = {0167-5087},
  keyword      = {Particle tracking,storage rings,collective effects,harmonic cavities},
  language     = {eng},
  pages        = {221--230},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments & Methods in Physics Research. Section A: Accelerators, Spectrometers, Detectors, and Associated Equipment},
  title        = {Simultaneous computation of intrabunch and interbunch collective beam motions in storage rings},
  url          = {http://dx.doi.org/10.1016/j.nima.2015.10.029},
  volume       = {806},
  year         = {2016},
}