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Proceedings Paper

Multi-cavity complex controller with vector simulator for TESLA technology linear accelerator
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Paper Abstract

A digital control, as the main part of the Low Level RF system, for superconducting cavities of a linear accelerator is presented. The FPGA based controller, supported by MATLAB system, was developed to investigate a novel firmware implementation. The complex control algorithm based on the non-linear system identification is the proposal verified by the preliminary experimental results. The general idea is implemented as the Multi-Cavity Complex Controller (MCC) and is still under development. The FPGA based controller executes procedure according to the prearranged control tables: Feed-Forward, Set-Point and Corrector unit, to fulfill the required cavity performance: driving in the resonance during filling and field stabilization for the flattop range. Adaptive control algorithm is applied for the feed-forward and feedback modes. The vector Simulator table has been introduced for an efficient verification of the FPGA controller structure. Experimental results of the internal simulation, are presented for a cavity representative condition.

Paper Details

Date Published: 28 December 2007
PDF: 9 pages
Proc. SPIE 6937, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2007, 69370G (28 December 2007); doi: 10.1117/12.784597
Show Author Affiliations
Tomasz Czarski, Warsaw Univ. of Technology (Poland)
Krzysztof T. Pozniak, Warsaw Univ. of Technology (Poland)
Ryszard S. Romaniuk, Warsaw Univ. of Technology (Poland)
Jaroslaw Szewinski, Warsaw Univ. of Technology (Poland)


Published in SPIE Proceedings Vol. 6937:
Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments 2007

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