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Article
Commissioning of the LCH Low Level RF System Remote Configuration Tools
International Particle Accelerator Conference 2010 Proceedings: Kyoto, Japan
  • D. Van Winkle, SLAC
  • C. Rivetta, SLAC
  • T. Mastoridis, SLAC
  • J. Fox, SLAC
  • P. Baudrenghien, CERN
  • A. Butterworth, CERN
  • J. Molendijk, CERN
Publication Date
5-23-2010
Abstract

The LHC Low Level RF system (LLRF) is a complex multi-loop system used to regulate the superconductive cavity gap voltage as well as to reduce the impedance presented by RF stations to the beam. The RF system can have a profound impact on the stability of the beam; a mis-configured RF system has the potential of causing longitudinal instabilities, beam diffusion and beam loss. To configure the RF station for operation, a set of parameters in the LLRF multi-loop system have to be defined. Initial system commissioning as well as ongoing operation requires a consistent method of computer based remote measurement and model-based design of each RF station feedback system. This paper describes the suite of Matlab tools used for configuring the LHC RF system during the start up in Nov2009-Feb2010. We present a brief overview of the tool, examples of commissioning results, and basics of the model-based design algorithms. This work complements our previous presentation [1], where the algorithms and methodology followed in the tools were described.

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Citation Information
D. Van Winkle, C. Rivetta, T. Mastoridis, J. Fox, et al.. "Commissioning of the LCH Low Level RF System Remote Configuration Tools" International Particle Accelerator Conference 2010 Proceedings: Kyoto, Japan (2010) p. 1479 - 1481
Available at: http://works.bepress.com/tmastori/11/