Resteering the beam appeared to help lower bqm's: While flowing abs they
now read:
U=169,L=115,R=80,D=51.
7:25pm- S/N for wire chambers appear now to be roughly symmetric between
superlayers of different sectors with decent S/N. Varying between 2.5:1 and
7:1. It is still unclear the cause for the right sector having such poor S/N
last night , but in any case thresholds for all the boxes are now 3 V and has
been saved as the default file to prevent accidental changes.
Boxes L1, L21 and R24 have tripped multiple times tonight. Mainly L1 and L21.
Data taking went relatively smoothly through the evening. Took thousands upon
thousands of runs. Waiting for instructions from above to begin analyzing.
Ligit, compression tube, and dissasociator pressures all stable through the
night.
Begin of Shift End of Shift
Liget 1.35 e-7 1.63 e-7
dissociator tube 11.53 11.51
S/N for wire chambers still better than 2:1 for all superlayers.
And Chris has made it so that you don't have to automatically put in the
charge in show_ep_asym.C. You still have to run charge.C once.
Adam,Wang
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