• Open Access

Feedback correction of injection errors using digital signal-processing techniques

N. S. Sereno and F. R. Lenkszus
Phys. Rev. ST Accel. Beams 10, 012803 – Published 22 January 2007

Abstract

Efficient transfer of electron beams from one accelerator to another is important for 3rd-generation light sources that operate using top-up. In top-up mode, a constant amount of charge is injected at regular intervals into the storage ring to replenish beam lost primarily due to Touschek scattering. Top-up therefore requires that the complex of injector accelerators that fill the storage ring transport beam with a minimum amount of loss. Injection can be a source of significant beam loss if not carefully controlled. In this note we describe a method of processing injection transient signals produced by beam-position monitors and using the processed data in feedback. Feedback control using the technique described here has been incorporated in the Advanced Photon Source (APS) booster synchrotron to correct injection transients.

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  • Received 10 July 2006

DOI:https://doi.org/10.1103/PhysRevSTAB.10.012803

This article is available under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI.

Authors & Affiliations

N. S. Sereno* and F. R. Lenkszus

  • Argonne National Laboratory, Advanced Photon Source, 9700 South Cass Avenue, Argonne, Illinois 60439, USA

  • *Electronic address: sereno@aps.anl.gov
  • Electronic address: frl@aps.anl.gov

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Vol. 10, Iss. 1 — January 2007

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