Effects of Depoiarizing Resonances on a Circuiating Beam of Poiarized Proions during Acceleration or Storage in a Synchrotron

We have conducted a ser ies of exper iments with the polarized proton beam of the Zero Gradient Synchrotron (ZGS) at Argonne National Laboratory in order to: 1) Study the feasibility of adiabatically crossing intrinsic depolarizing resonances as an alternative to the fast tune-shift crossing presently used, 2) determine the amount of depolarization due to imperfection resonances which may be more important in alternating-gradient machines than in the ZGS, 3) determine whether polarized protons can be stored for times long enough to allow polarized colliding beam experiments. The results of these experiments will be presented.