  A feed-forward ramp can be implemented in Booster to compensate the beam
energy loss at different beam intensities for the purpose of minimizing the
radial error signal. This can be done only when we have a good understanding
about the dependence between the beam energy loss per turn and the beam
intensity experimentally. Besides, based upon this understanding we can predict
the required accelerating voltage at the transition crossing for different beam
intensities, which can be extremely helpful for Booster running at higher beam
intensities than ever before.
