Siberian snake experiments at the IUCF Cooler Ring
1999
Recent polarized proton beam experiments in the IUCF Cooler Ring found an evidence for a second-order snake depolarizing resonance, when the vertical betatron tune was inadvertently set near a quarter-integer. We have also studied the possibility of spin-flipping the beam polarization in the presence of a full Siberian snake using an RF solenoid. By varying the rf solenoid's ramp time and frequency range, we reached a spin-flip efficiency of about 97%.
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