Author: Barabin, S.V.
Paper Title Page
MOPKS007 Design of a Digital Controller for ALPI 80 MHz Resonators 174
  • S.V. Barabin
    ITEP, Moscow, Russia
  • G. Bassato
    INFN/LNL, Legnaro (PD), Italy
  We discuss the design of a resonator controller completely based on digital technology. The controller is currently operating at 80 MHz but can be easily adapted to frequencies up to 350MHz; it can work either in "Generator Driven" and in "Self Excited Loop" mode. The signal processing unit is a commercial board (Bittware T2-Pci) with 4 TigerSharc DSPs and a Xilinx Virtex II-Pro FPGA. The front-end board includes five A/D channels supporting a sampling rate in excess of 100M/s and a clock distribution system with a jitter less than 10ps, allowing direct sampling of RF signals with no need of analog downconversion. We present the results of some preliminary tests carried out on a 80 MHz quarter wave resonator installed in the ALPI Linac accelerator at INFN-LNL and discuss possible developments of this project.  
poster icon Poster MOPKS007 [0.931 MB]