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Transverse Instabilities in the MAX IV 3 GeV Ring

Skripka, Galina LU ; Fernandes Tavares, Pedro LU ; Klein, Marit and Nagaoka, Ryutaro (2014) 5th International Particle Accelerator Conference (IPAC 2014) In Proceedings of IPAC2014, Dresden, Germany p.1689-1691
Abstract
Collective effects in MAX IV 3 GeV storage ring are strongly enhanced by the combination of low emittance, high current and small effective aperture. Three passive harmonic cavities (HC) are introduced to lengthen the bunches, by which beam stabilization is anticipated via decoupling to high frequency wakes, along with Landau damping. The role of the transverse impedance budget of the MAX IV 3

GeV storage ring as a source of collective beam instabilities was determined. With the help of the macroparticle multibunch tracking code mbtrack that directly uses the former as input, we studied the influence of geometric and resistive wall impedance in both transverse planes, as well as that of chromaticity shifting. A fully dynamic... (More)
Collective effects in MAX IV 3 GeV storage ring are strongly enhanced by the combination of low emittance, high current and small effective aperture. Three passive harmonic cavities (HC) are introduced to lengthen the bunches, by which beam stabilization is anticipated via decoupling to high frequency wakes, along with Landau damping. The role of the transverse impedance budget of the MAX IV 3

GeV storage ring as a source of collective beam instabilities was determined. With the help of the macroparticle multibunch tracking code mbtrack that directly uses the former as input, we studied the influence of geometric and resistive wall impedance in both transverse planes, as well as that of chromaticity shifting. A fully dynamic treatment of the passive harmonic cavities developed for this study allowed us to evaluate their effectiveness under varying beam conditions. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
collective effects, impedance
in
Proceedings of IPAC2014, Dresden, Germany
pages
3 pages
conference name
5th International Particle Accelerator Conference (IPAC 2014)
external identifiers
  • Scopus:84928348695
ISBN
978-3-95450-132-8
language
English
LU publication?
yes
id
edde2948-5e62-4456-91b4-dfaa0b4a2298 (old id 8147529)
date added to LUP
2015-11-02 08:54:50
date last changed
2016-10-13 05:01:32
@misc{edde2948-5e62-4456-91b4-dfaa0b4a2298,
  abstract     = {Collective effects in MAX IV 3 GeV storage ring are strongly enhanced by the combination of low emittance, high current and small effective aperture. Three passive harmonic cavities (HC) are introduced to lengthen the bunches, by which beam stabilization is anticipated via decoupling to high frequency wakes, along with Landau damping. The role of the transverse impedance budget of the MAX IV 3<br/><br>
GeV storage ring as a source of collective beam instabilities was determined. With the help of the macroparticle multibunch tracking code mbtrack that directly uses the former as input, we studied the influence of geometric and resistive wall impedance in both transverse planes, as well as that of chromaticity shifting. A fully dynamic treatment of the passive harmonic cavities developed for this study allowed us to evaluate their effectiveness under varying beam conditions.},
  author       = {Skripka, Galina and Fernandes Tavares, Pedro and Klein, Marit and Nagaoka, Ryutaro},
  isbn         = {978-3-95450-132-8},
  keyword      = {collective effects,impedance},
  language     = {eng},
  pages        = {1689--1691},
  series       = {Proceedings of IPAC2014, Dresden, Germany},
  title        = {Transverse Instabilities in the MAX IV 3 GeV Ring},
  year         = {2014},
}