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Commissioning of the harmonic cavities in the MAX IV 3 GeV ring

Skripka, G. LU ; Andersson, Åke LU ; Mitrovic, A. LU ; Fernandes Tavares, Pedro LU ; Cullinan, F. J. and Nagaoka, Ryutaro (2016) 7th International Particle Accelerator Conference, IPAC 2016 In IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference p.2911-2913
Abstract

The MAX IV 3 GeV storage ring operates with beam of high current and ultralow emittance. These beam parameters in combination with the small effective aperture enhance possible collective beam instabilities. Three passive harmonic cavities are installed to introduce bunch lengthening and tune spread, leading to decoupling of the bunch spectrum from the machine effective impedance and mitigating instabilities by Landau damping respectively. In this paper we present the first results of the commissioning of the passive third harmonic cavities in the MAX IV 3 GeV ring. The additional harmonic cavity potential significantly improved the beam lifetime. First observations of the harmonic cavity effect on the damping of collective beam... (More)

The MAX IV 3 GeV storage ring operates with beam of high current and ultralow emittance. These beam parameters in combination with the small effective aperture enhance possible collective beam instabilities. Three passive harmonic cavities are installed to introduce bunch lengthening and tune spread, leading to decoupling of the bunch spectrum from the machine effective impedance and mitigating instabilities by Landau damping respectively. In this paper we present the first results of the commissioning of the passive third harmonic cavities in the MAX IV 3 GeV ring. The additional harmonic cavity potential significantly improved the beam lifetime. First observations of the harmonic cavity effect on the damping of collective beam instabilities are discussed.

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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
in
IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference
pages
3 pages
publisher
Joint Accelerator Conferences Website (JACoW)
conference name
7th International Particle Accelerator Conference, IPAC 2016
external identifiers
  • scopus:85015293832
ISBN
9783954501472
language
English
LU publication?
yes
id
953eeb9b-ff7c-4963-a23d-5e4eb978898b
alternative location
http://accelconf.web.cern.ch/accelconf/ipac2016/papers/wepow035.pdf
date added to LUP
2017-03-30 13:10:53
date last changed
2017-04-03 09:25:59
@inproceedings{953eeb9b-ff7c-4963-a23d-5e4eb978898b,
  abstract     = {<p>The MAX IV 3 GeV storage ring operates with beam of high current and ultralow emittance. These beam parameters in combination with the small effective aperture enhance possible collective beam instabilities. Three passive harmonic cavities are installed to introduce bunch lengthening and tune spread, leading to decoupling of the bunch spectrum from the machine effective impedance and mitigating instabilities by Landau damping respectively. In this paper we present the first results of the commissioning of the passive third harmonic cavities in the MAX IV 3 GeV ring. The additional harmonic cavity potential significantly improved the beam lifetime. First observations of the harmonic cavity effect on the damping of collective beam instabilities are discussed.</p>},
  author       = {Skripka, G. and Andersson, Åke and Mitrovic, A. and Fernandes Tavares, Pedro and Cullinan, F. J. and Nagaoka, Ryutaro},
  booktitle    = {IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference},
  isbn         = {9783954501472},
  language     = {eng},
  pages        = {2911--2913},
  publisher    = {Joint Accelerator Conferences Website (JACoW)},
  title        = {Commissioning of the harmonic cavities in the MAX IV 3 GeV ring},
  year         = {2016},
}