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Bulfone, D.

Paper Title Page
CT08 Capabilities of the ELETTRA/SLS Multibunch Feedback Electronics 74
 
  • M. Dehler, R. Kramert, P. Pollet, D. Bulfone, M. Lonza
    PSI, Paul Scherrer Institut, Villigen, Switzerland
 
  Due to the unavailability of commercial ADC and DAC boards, first commissioning of the transverse multi bunch feedback was done in the last year using loaned equipment from Sincrotrone Trieste. In order to remedy that situation, development of ADC and DAC VME boards was started. The boards do a 500 MS/s data conversion with an 8 bit resolution. The ADC and DAC circuits are separate modules containing their own one to four de-/multiplexing electronic reducing the data rate to 125 MS/sec. The following stage being a common design to both ADC and DAC allows data recording and play back using on board RAM and allows freely programmable multiplexing/demultiplexing ratios of one to five to one to twelve. The digital data streams flow via Front Panel Digital Ports (FPDP). A special design criterion were low system latencies ensuring a high feedback efficiency. Apart from lab tests, we report on full feedback system test and show the feedback performance in the transverse and longitudinal planes.