The p-carbon polarimeter working in the dp/p Coulomb Nuclear Interference (CNI) region has
been used in the Brookhaven Alternating Gradient Synchrotron (AGS ) for many years. It has
gone though several upgrades to improve its performance. With targets sweeping through beam
vertically and horizontally, the polarimeter can provide polarization profile information. To preserve
polarization, a pair of horizontal tune jump quads have been used to overcome horizontal
intrinsic resonances. Recently, the polarization measurement on the energy ramp has been used
to decide the beam energy as function of time on the ramp. This paper summarize the recent
operation experience of AGS p-carbon CNI polarimeter.