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Overview of some feedback-&control systems at synchrotron SolEIL

Engblom, C. ; Alves, F. ; Blache, F. ; Corruble, D. ; Dawiec, A. ; Diop, M. ; Hubert, N. ; Kubsky, S. ; Langlois, F. and Marchand, P. , et al. (2016) 11th International Workshop on Personal Computers and Particle Accelerator Controls, PCaPAC 2016 p.132-136
Abstract

This paper gives an overview of some feedback & control systems at Synchrotron SOLEIL that are in use or in development today. Beam stability is crucial and adressed in all SOLEIL aspects; Fast Orbit Feedback is a multi-input multi-output control system made to stabilize beam position perturbations in the low- & high frequency band. In addition, active RF cavities are used to maintain stable beam energy & spread as well as keeping electron density even throughout the storage ring. Beam stability also comes from feedforward non-linear control in particle trajectory compensation on both sides of electromagnetic undulators. On some beamlines, multi-actuator piezos or pneumatics are used to regulate photon flux to keep within... (More)

This paper gives an overview of some feedback & control systems at Synchrotron SOLEIL that are in use or in development today. Beam stability is crucial and adressed in all SOLEIL aspects; Fast Orbit Feedback is a multi-input multi-output control system made to stabilize beam position perturbations in the low- & high frequency band. In addition, active RF cavities are used to maintain stable beam energy & spread as well as keeping electron density even throughout the storage ring. Beam stability also comes from feedforward non-linear control in particle trajectory compensation on both sides of electromagnetic undulators. On some beamlines, multi-actuator piezos or pneumatics are used to regulate photon flux to keep within detector operating range; a method to maximize the photon flux while still keeping below detector damage thresholds. Currently in development & at the sample stage level, the Nanoprobe Project collaboration (MAXIV & SOLEIL) focuses on sample stabilization during step- & fly- scans which is realized through multi-axis nano-positioning with high- & low- frequency closed-loop control implementing interferometer feedback &/or compensation tables.

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organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
Proceedings of the 11th International Workshop on Personal Computers and Particle Accelerator Controls, PCaPAC 2016
editor
Schaa, Volker RW ; Picoreti, Renan and Volpe, Lucas Monteiro
pages
5 pages
publisher
JACoW Publishing
conference name
11th International Workshop on Personal Computers and Particle Accelerator Controls, PCaPAC 2016
conference location
Campinas, Brazil
conference dates
2016-10-25 - 2016-10-28
external identifiers
  • scopus:85070574832
ISBN
9783954501892
language
English
LU publication?
yes
id
da09f8de-ef54-4021-a221-bda48e12ffc1
date added to LUP
2019-08-22 10:20:59
date last changed
2022-01-31 23:59:01
@inproceedings{da09f8de-ef54-4021-a221-bda48e12ffc1,
  abstract     = {{<p>This paper gives an overview of some feedback &amp; control systems at Synchrotron SOLEIL that are in use or in development today. Beam stability is crucial and adressed in all SOLEIL aspects; Fast Orbit Feedback is a multi-input multi-output control system made to stabilize beam position perturbations in the low- &amp; high frequency band. In addition, active RF cavities are used to maintain stable beam energy &amp; spread as well as keeping electron density even throughout the storage ring. Beam stability also comes from feedforward non-linear control in particle trajectory compensation on both sides of electromagnetic undulators. On some beamlines, multi-actuator piezos or pneumatics are used to regulate photon flux to keep within detector operating range; a method to maximize the photon flux while still keeping below detector damage thresholds. Currently in development &amp; at the sample stage level, the Nanoprobe Project collaboration (MAXIV &amp; SOLEIL) focuses on sample stabilization during step- &amp; fly- scans which is realized through multi-axis nano-positioning with high- &amp; low- frequency closed-loop control implementing interferometer feedback &amp;/or compensation tables.</p>}},
  author       = {{Engblom, C. and Alves, F. and Blache, F. and Corruble, D. and Dawiec, A. and Diop, M. and Hubert, N. and Kubsky, S. and Langlois, F. and Marchand, P. and Jobert, N. and Renaud, G. and Abiven, Y. M. and Stankevic, T.}},
  booktitle    = {{Proceedings of the 11th International Workshop on Personal Computers and Particle Accelerator Controls, PCaPAC 2016}},
  editor       = {{Schaa, Volker RW and Picoreti, Renan and Volpe, Lucas Monteiro}},
  isbn         = {{9783954501892}},
  language     = {{eng}},
  pages        = {{132--136}},
  publisher    = {{JACoW Publishing}},
  title        = {{Overview of some feedback-&control systems at synchrotron SolEIL}},
  year         = {{2016}},
}