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Pseudo-single-bunch mode for a 100 MHz storage ring serving soft X-ray timing experiments

Olsson, Teresia LU ; Leemann, Simon LU ; Georgiev, Georgi and Paraskaki, Georgia (2018) In Nuclear Instruments and Methods In Physics Research 894. p.145-156
Abstract
At many storage rings for synchrotron light production there is demand for serving both high-flux and timing users simultaneously. Today this is most commonly achieved by operating inhomogeneous fill patterns, but this is not preferable for rings that employ passive harmonic cavities to damp instabilities and increase Touschek lifetime. For these rings, inhomogeneous fill patterns could severely reduce the effect of the harmonic cavities. It is therefore of interest to develop methods to serve high-flux and timing users simultaneously without requiring gaps in the fill pattern. One such method is pseudo-single-bunch (PSB), where one bunch in the bunch train is kicked onto another orbit by a fast stripline kicker. The light emitted from the... (More)
At many storage rings for synchrotron light production there is demand for serving both high-flux and timing users simultaneously. Today this is most commonly achieved by operating inhomogeneous fill patterns, but this is not preferable for rings that employ passive harmonic cavities to damp instabilities and increase Touschek lifetime. For these rings, inhomogeneous fill patterns could severely reduce the effect of the harmonic cavities. It is therefore of interest to develop methods to serve high-flux and timing users simultaneously without requiring gaps in the fill pattern. One such method is pseudo-single-bunch (PSB), where one bunch in the bunch train is kicked onto another orbit by a fast stripline kicker. The light emitted from the kicked bunch can then be separated by an aperture in the beamline. Due to recent developments in fast kicker design, PSB operation in multibunch mode is within reach for rings that operate with a 100 MHz RF system, such as the MAX IV and Solaris storage rings. This paper describes machine requirements and resulting performance for such a mode at the MAX IV 1.5 GeV storage ring. A solution for serving all beamlines is discussed as well as the consequences of beamline design and operation in the soft X-ray energy range. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Nuclear Instruments and Methods In Physics Research
volume
894
pages
145 - 156
publisher
Elsevier
ISSN
0168-9002
DOI
10.1016/j.nima.2018.03.067
language
English
LU publication?
yes
id
fa52d408-8a0e-46a3-b634-6f36e5dae15b
date added to LUP
2018-05-09 13:32:58
date last changed
2018-06-29 12:54:50
@article{fa52d408-8a0e-46a3-b634-6f36e5dae15b,
  abstract     = {At many storage rings for synchrotron light production there is demand for serving both high-flux and timing users simultaneously. Today this is most commonly achieved by operating inhomogeneous fill patterns, but this is not preferable for rings that employ passive harmonic cavities to damp instabilities and increase Touschek lifetime. For these rings, inhomogeneous fill patterns could severely reduce the effect of the harmonic cavities. It is therefore of interest to develop methods to serve high-flux and timing users simultaneously without requiring gaps in the fill pattern. One such method is pseudo-single-bunch (PSB), where one bunch in the bunch train is kicked onto another orbit by a fast stripline kicker. The light emitted from the kicked bunch can then be separated by an aperture in the beamline. Due to recent developments in fast kicker design, PSB operation in multibunch mode is within reach for rings that operate with a 100 MHz RF system, such as the MAX IV and Solaris storage rings. This paper describes machine requirements and resulting performance for such a mode at the MAX IV 1.5 GeV storage ring. A solution for serving all beamlines is discussed as well as the consequences of beamline design and operation in the soft X-ray energy range.},
  author       = {Olsson, Teresia and Leemann, Simon and Georgiev, Georgi and Paraskaki, Georgia},
  issn         = {0168-9002},
  language     = {eng},
  month        = {06},
  pages        = {145--156},
  publisher    = {Elsevier},
  series       = {Nuclear Instruments and Methods In Physics Research},
  title        = {Pseudo-single-bunch mode for a 100 MHz storage ring serving soft X-ray timing experiments},
  url          = {http://dx.doi.org/10.1016/j.nima.2018.03.067},
  volume       = {894},
  year         = {2018},
}