Damping rate measurements in the SLC damping rings

The transverse damping rates of the SLC electron and positron damping rings have been measured during the high current physics run at, I=3.5/spl times/10/sup 10/ particles per bunch. The measurements, done over a period of two months, show large fluctuations exceeding the statistical uncertainty of each measurement. The longitudinal damping rate of the positron damping was also measured.