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Persistent URL http://purl.org/net/epubs/work/44093
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Record Id 44093
Title Turnaround feed-forward correction at the ILC
Abstract The RTML turnaround feed-forward correction scheme, as proposed in the ILC BCD, is considered. Instabilities in the challenging Damping Ring extraction system may give rise to beam transverse bunch-by-bunch jitter, as well as drift across the bunch train. A system is outlined in which the bunch trajectory is measured with an upstream pair of BPMs and corrected with a pair of downstream fast kickers. The beam turnaround time 0.5μs allows signal processing and calculation of the correction. A feed-forward algorithm is formulated and expressions are derived for the main system parameters (BPM resolution, system zero offset stability, kicker voltage, kicker gain compression error) and procedures (matrix measurement, feed-forward gain adjustment). This analysis enables further consideration of the tolerances, and provides a basis for the engineering design.
Organisation CCLRC , ASTeC , ASTeC-RFD , CI
Keywords physics
Funding Information
Related Research Object(s): 34172960
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Language English (EN)
Type Details URI(s) Local file(s) Year
Preprint CI Preprints Cockcroft 07-30 2007. Submitted to: Particle Accelerator Conference 2007 (PAC07), Albuquerque, New Mexico, USA, 25-29 Jun 2007 2007