• A. Drago, M.M. Beretta
  INFN/LNF, Frascati (Roma)
• K.J. Bertsche, A. Novokhatski
  SLAC, Menlo Park, California
• M. Migliorati
  Rome University La Sapienza, Roma

The SuperB project has the goal to build in the Frascati or Tor Vergata area, an asymmetric e+/e^- Super Flavor Factory to achieve a peak luminosity > 10³⁶ cm^-2 s^-1. The SuperB design is based on collisions with extremely low vertical emittance beams. A source of emittance growth comes from the bunch by bunch feedback systems producing high power correction signals to damp the beams. To limit any undesirable effect, a large R&D program is in progress, partially funded by the INFN Fifth National Scientific Committee through the SFEED (SuperB feedback) project approved within the 2010 budget. One of the first steps of the R&D program consists in the upgrade and test of new 12-bit feedback systems in the vertical plane of the DAΦNE main rings. The systems are the direct evolution of the previous 8-bit system design by a KEK/SLAC/LNF collaboration, yielding a good compatibility with the powerful diagnostics and analysis programs developed in the past. Studies on their effects in the longitudinal plane are also in progress.