| Paper | Title | Page |
|---|---|---|
| THB004 | New Fast Orbit Feedback Architecture Based on Libera Brilliance Devices for the ESRF Storage Ring | 653 |
|
||
|
In the frame of the upgrade of the ESRF, one important implementation regarding the source will be to improve the stability of the beam in the whole frequency range at which mechanical vibrations or electro-magnetic disturbances take place. The improvement of the existing orbit correction scheme based on separate slow and fast systems* will be achieved both by taking advantage of smart measurement thanks to the newly installed Libera Brilliance and by using more correctors than today. This new Fast Orbit Feedback will therefore rely only on the 96 correctors integrated inside the sextupole magnets to cover the full frequency range all around the ring. Following the successful implementation of such a scheme at the Swiss Light Source and, more recently, at Diamond Light Source, re-using as much as possible pieces of software and ideas on hardware both from DLS and from Soleil, we have defined the architecture for the ESRF scheme that will be developed in this paper.
* DIPAC 2009 ID: 1208 - TUPD05 Eric Plouviez (ESRF, Grenoble) Improvement of the Fast Orbit Correction on the ESRF Storage Ring |
||
| THP004 | ESRF's New Beam Position System for the Storage Ring using Libera Brilliance Devices | 682 |
|
||
| The ESRF has entirely replaced the control of the Storage Ring Beam Position Monitors. 224 intelligent controllers (Libera-Brilliance) have replaced the former system working for 17 years. The orbit feedback software, reads the orbit parameters from these devices via a set of hierarchical TANGO device servers. This challenging upgrade has been done progressively over 3 months without interrupting the operation of the ESRF. This paper describes the architecture of both Slow and fast Orbit Feedback control systems with a particular focus on the challenges linked to the data flow generated by this high number of devices. It makes a point on the tools developed for installation and maintenance. This Fast and efficient result was possible thanks to a collaborative development at several levels. Soleil developed the TANGO device server for the Libera brilliance which was then re-used and improved by the other Instituts within the collaboration: Elettra, Alba and ESRF. The FPGA firmware for the Communication Controller of the Fast Orbit Feedback was initially developed at the Diamond Light Source and also used by Soleil and the ESRF and is now become a standard option of the Libera. |