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Time-Correlated Single-Photon Counting for versatile longitudinal diagnostics at the MAX IV Laboratory storage rings

Brosi, Miriam LU orcid ; Schmand, Johann LU ; Breunlin, Jonas LU and Curbis, Francesca LU orcid (2025) In Journal of Instrumentation 20(3).
Abstract
Precise diagnostic on the electron beam parameters is a very valuable tool and essential in the operation of synchrotron light sources. One possible option is to employ the emitted synchrotron radiation for non-destructive measurements. A tool, which has been used in many ring-based synchrotron light sources is Time-Correlated Single-Photon Counting (TCSPC). It allows to measure the arrival time distribution of the emitted photons and, by that, reveals the filling pattern, i.e., the charge distribution onto the electron bunches stored in the storage ring. At MAX IV, two TCSPC setups were installed and the analysis was extended to also allow for the measurement of the longitudinal profiles of the individual bunches. The analysis is... (More)
Precise diagnostic on the electron beam parameters is a very valuable tool and essential in the operation of synchrotron light sources. One possible option is to employ the emitted synchrotron radiation for non-destructive measurements. A tool, which has been used in many ring-based synchrotron light sources is Time-Correlated Single-Photon Counting (TCSPC). It allows to measure the arrival time distribution of the emitted photons and, by that, reveals the filling pattern, i.e., the charge distribution onto the electron bunches stored in the storage ring. At MAX IV, two TCSPC setups were installed and the analysis was extended to also allow for the measurement of the longitudinal profiles of the individual bunches. The analysis is available as a Tango device in the accelerator control system and continuously provides, for example, the bunch length of each bunch as well as the bunch profiles and phases. This improved the diagnostic capabilities significantly, for example, in the presence of Landau cavities, which are becoming increasingly more common in new fourth-generation synchrotron light sources. (Less)
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author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Instrumentation
volume
20
issue
3
article number
P03011
pages
19 pages
publisher
IOP Publishing
external identifiers
  • scopus:86000576268
ISSN
1748-0221
DOI
10.1088/1748-0221/20/03/P03011
language
English
LU publication?
yes
id
14aa9a9d-ead9-47f5-a3fd-59b5b42687c0
date added to LUP
2025-02-18 15:01:40
date last changed
2025-06-19 10:28:07
@article{14aa9a9d-ead9-47f5-a3fd-59b5b42687c0,
  abstract     = {{Precise diagnostic on the electron beam parameters is a very valuable tool and essential in the operation of synchrotron light sources. One possible option is to employ the emitted synchrotron radiation for non-destructive measurements. A tool, which has been used in many ring-based synchrotron light sources is Time-Correlated Single-Photon Counting (TCSPC). It allows to measure the arrival time distribution of the emitted photons and, by that, reveals the filling pattern, i.e., the charge distribution onto the electron bunches stored in the storage ring. At MAX IV, two TCSPC setups were installed and the analysis was extended to also allow for the measurement of the longitudinal profiles of the individual bunches. The analysis is available as a Tango device in the accelerator control system and continuously provides, for example, the bunch length of each bunch as well as the bunch profiles and phases. This improved the diagnostic capabilities significantly, for example, in the presence of Landau cavities, which are becoming increasingly more common in new fourth-generation synchrotron light sources.}},
  author       = {{Brosi, Miriam and Schmand, Johann and Breunlin, Jonas and Curbis, Francesca}},
  issn         = {{1748-0221}},
  language     = {{eng}},
  month        = {{03}},
  number       = {{3}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Instrumentation}},
  title        = {{Time-Correlated Single-Photon Counting for versatile longitudinal diagnostics at the MAX IV Laboratory storage rings}},
  url          = {{http://dx.doi.org/10.1088/1748-0221/20/03/P03011}},
  doi          = {{10.1088/1748-0221/20/03/P03011}},
  volume       = {{20}},
  year         = {{2025}},
}