User name R. Michaels
Log entry time 01:57:12 on October27,2001
Entry number 75123
This entry is a followup to: 75054
keyword=More accurate Pump Speed OptimizationAnalyzing the data for the target pump speed optimization
and calibration, which we took last night, I found some mistakes
in my previous analysis. Below are the updated results and fig 1
is a plot. Based on this, the optimum pump speed is probably
more like 1250 instead of 1200 (TACH). Notation in table:
I-bar = average current (microAmps), DT = deadtime (not relevant for scaler analysis)
T1 = R-arm singles trigger (counts), Sigma-1 = relative cross section on R-arm
T3 = L-arm singles trigger (counts), Sigma-3 = relative cross section on L-arm
Run.....TACH.....Time......I-bar.....DT........T1.......Sigma-1.......T3........Sigma-3
............................(min)......(uA).....(%)....(Million)........(ARB)......(M)........(ARB)
1221......500........7.77.........46.......10.2......3.36.........0.25..........21.5..........0.38
1225......750........5.88.........40........5.9.......5.49.........0.64..........27.5..........0.73
1226.....1000.......2.68.........35........7.3.......2.84.........0.82..........13.2..........0.87
1227.....1250.......5.90.........36........7.8.......7.04.........0.90...........31.7.........0.93
1228.....1500.......4.48.........43........8.8.......6.91.........0.97...........30.4.........0.98
1229.....1750.......3.28.........38........8.4.......4.55.........1.0.............19.8..........1.0
FIGURE 1
