The following table shows a double difference in asymmetry for different bcm combinations for runs before and after the electronics change in cavity BCMs in Feb 03, 2011. There seems to be improvement in BCM1-6 and BCM2-6 combinations only.
Run BCM1-2 BCM1-5 BCM1-6 BCM2-5 BCM2-6 BCM 5-6 Currnt [uA] After the cavity electroincs change in Feb 03, 2011 9803 118 195 159 197 160 88 150 9802 115 196 159 197 160 90 150 9798 118 198 162 199 163 91 150 9795 119 197 162 198 163 91 150 Before the cavity electroincs change in Feb 03, 2011 9605 115 205 218 205 218 83 150 9601 115 201 216 202 216 80 150 9597 118 202 216 203 216 78 150 9596 119 205 217 206 218 80 150