GE11-P-36L2: Suspicious QA VFAT FEAST
The VFAT QA FEAST on GE+1/1/36 Ly2 appears suspicious. All VFAT in this power domain show fluctuating signs of communication instabilities or lower performances: large amount of dead channels reported in the calibration pulse scan, empty S-curves, low efficiencies,...
In order to improve the data quality and reduce confusion, those VFAT have been masked (GBT phase set to 15).
Corresponding e-log: http://cmsonline.cern.ch/cms-elog/1190428