A SIBERIAN SNAKE WITH OVERLAPPING DEPOLARIZING RESONANCES

The behavior of ''overlapping'' depolarizing resonances was studied us ing a stored 106.4-MeV polarized proton beam. We used an rf solenoid m agnet to create an ''rf induced'' depolarizing resonance which was the n forced to overlap with the Ggamma = 2 imperfection depolarizing reso nance. We found significant interactions between the two resonances by varying their frequencies and strengths; the frequency of the rf reso nance strongly affected the response of the imperfection resonance to correction magnetic fields. The Siberian snake overcame all observable depolarization due to the overlapping resonances and maintained full polarization for all observed frequencies and strengths.