Shift Crew: SL: F. Benmokhtar, A. Chahinyan, M. Cammisso16:00 Started the shift with run# 66285, so many beam trips 16:10 Called MCC to investigate the beam trips, they said they can reduce the number of trips if they reduce the current to 75 uA, and the trips are do to BML ( I think Beam Lost Monitors ).
16:15 Changed ps4 to 10, the deadtime went from 30% to 10% 16:45 MCC called, beam will be off for 10 minutes, to deal with some Hall B issues.
19:30 Mcc started their BCM calibrations, in 1/2 h we will do ours. We moved the targte to 4cm dummy to prepare for our calibrations.
19:35 Asked for a controlled access, Mark and Mahdi are going to do some fixes in detectors.
20:30 Started the Hall C BCM calibration. run 66299 we followed the instructions in: http://hallcweb.jlab.org/document/howtos/bcm_calibration/ MCC couldn't go higher than 70 uA. We used loop 3.
22:05 Taking a 10 minutes run for Mehdi's run, to check the FPP
22:40 Mehdi went for a controlled access to work more on the FPP channel which is not working properly. Hall A gave up their BCM calibrations, and they are doing harp scans. The beam will not be very useful for as at that time anyways.
23:50 MCC called, they say that hall A decided to do their BCM calibrations now. It will take them around 1h.