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User name jroche
Log entry time 21:25:46 on January 15,2011
Entry number 214722
This entry is a followup to: 214711
Followups:
keyword=position difference when double peaks on downstream lumi
As Mark suggested I looked at the position difference for run 9045. For that run I have previously reported double peaking in the lumi asymmetries (downstream, tube 1 and 5). Mark talked about large sensitivities of those asymmetries to position difference: large even though we migth have trouble seeing themwith our bpms. Yes, the plot below doesn't show the sensistivies.
By the way, I do not see the double peak anymore, at least in the last run I looked at 9050.
FIGURE 1
