23 February 2005 FPGA-based cavity simulator and controller for TESLA test facility
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The paper describes an integrated, hardware system for the control and simulation of a superconducting cavity of the linear accelerator. The photonic and electronic control system was realized using a programmable FPGA chip Xilinx Virtex II 3000. The chip was placed on a board Xtreme DSP Development Kit by Nallatech. The system was implemented using the VHDL technology. The hardware multiplying blocks from the Virtex II series chip were used. The resultant controller device worked in the real time, in accordance with the requirements of the TESLA Test Facility project, for the LLRF sub-system of the resonant cavities. In particular, the paper describes the functional layer of the system. Individual executing blocks of the controller implemented in the FPGA chip were debated. The functional structure and hardware implementation of the controller communication layer were presented. Some examples of the system in action were chosen. A number of the real time processes were monitored.
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Krzysztof T. Pozniak, Krzysztof T. Pozniak, Tomasz Czarski, Tomasz Czarski, Ryszard S. Romaniuk, Ryszard S. Romaniuk, "FPGA-based cavity simulator and controller for TESLA test facility", Proc. SPIE 5775, Photonics Applications in Astronomy, Communications, Industry, and High-Energy Physics Experiments III, (23 February 2005); doi: 10.1117/12.610570; https://doi.org/10.1117/12.610570

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