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Overview of Some Feedback & Control Systems at Synchrotron Soleil
- Source :
- 11th International Workshop on Personal Computers and Particle Accelerator Controls, 11th International Workshop on Personal Computers and Particle Accelerator Controls, Oct 2016, Campinas, Brazil. pp.FRFMPLIO03, ⟨10.18429/JACoW-PCaPAC2016-FRFMPLIO03⟩
- Publication Year :
- 2016
- Publisher :
- HAL CCSD, 2016.
-
Abstract
- This paper gives an overview of some feedback & control systems in Synchrotron SOLEIL that are in use or in development today. Electron Beam stability is something that is being addressed in several SOLEIL applications; Fast Orbit Feedback is a multi-input multi-output control system made to stabilize beam position perturbations with slow and fast corrections. 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 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 keeping detector below 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.<br />Proceedings of the 11st Int. Workshop on Personal Computers and Particle Accelerator Controls, PCaPAC2016, Campinas, Brazil
- Subjects :
- [PHYS.PHYS.PHYS-ACC-PH]Physics [physics]/Physics [physics]/Accelerator Physics [physics.acc-ph]
feedback
02 engineering and technology
cavity
021001 nanoscience & nanotechnology
01 natural sciences
Accelerator Physics
010309 optics
Feedbacks and System Modeling
0103 physical sciences
synchrotron
Physics::Accelerator Physics
controls
ion
0210 nano-technology
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- 11th International Workshop on Personal Computers and Particle Accelerator Controls, 11th International Workshop on Personal Computers and Particle Accelerator Controls, Oct 2016, Campinas, Brazil. pp.FRFMPLIO03, ⟨10.18429/JACoW-PCaPAC2016-FRFMPLIO03⟩
- Accession number :
- edsair.doi.dedup.....332932c7be5995514259ca50713ae82b