If it turns out that Lumi signal changed dramatically, most likely beam quality is not right, or we are running at a higher current. Only the experts (Xiaoyan, Yawei and Joe) are allowed to change lumi voltages, other people should just monitor the Lumi screen, save it in Halog.
We should avoid frequent changes to Lumi voltage, that will screw up the
analysis in the future.
A copy of this log entry has been emailed to: yawei, deng, jkatich, brads, miham,peter,jiang