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User name R. Michaels
Log entry time 23:50:34 on October12,2005
Entry number 156680
keyword=R-HRS alignment
Run 2815 was a repeat of 2814, while we were waiting.
Next we go for -2%.
P_L = 3.06544, P_R = 3.06456
Rates
T1 = 205 kHz
T2 = 18.6 kHz
T3 = 194 kHz
T4 = 12.8 kHz
T5 = T6 = 0
T7 = 304 kHz
T8 = 273 kHz
Run 2816 at dP = -2%.
We can align the Right HRS. (For Left HRS with one detector
missing, I don't want to do this yet. We need to fix that.)
See fig 1. Comparing T1 to T2 for run 2816, it's clear we need
to move 53 MeV. This puts superelastic edge (labelled "1") to
the right edge of detector (corresponding "1"). The width of
the 2-segment detector is evidentally 41 MeV (labelled "2").
So, the aligned R-HRS momentum is 3117.6 MeV
FIGURE 1