Gains from slopes for isolated towers from MinB p+p collisions
  • Data Taken with HV set F
  • slope determination described at this entry
  • only minb triggered events (trig ID 45020, 45010, 10) were used from eemcCalibPP runs.
  • no towers were masked out while checking isolation
  • 1 month old (online quality) pedestals subtracted

    Spectra of slopes for all Towers :
    * only day 132, ~160K events accepted spectra, Slope ASCII File
    * only day 107+132, ~613K events accepted     spectra, Slope ASCII File

    XXXXXXXXXXXXXXXXXXx WORKING XXXXXXXXXXXXXXXXXX

    3rd deg polynomial was fitted to averaged over phi slopes for calibrated towers in sectors 5-8. Error of eta bin3 was increased to remove it from the fit. used .C code
    .
    eta bin smooth slope
    HV set iv_F    		 ideal gains
    (ch/GeV)    		 gain*slope
    1 -0.209 18.9 -3.95
    2 -0.204 20.8 -4.24
    3 -0.198 22.6 -4.48
    4 -0.189 24.6 -4.65
    5 -0.179 26.5 -4.76
    6 -0.169 28.5 -4.81
    7 -0.157 30.5 -4.80
    8 -0.146 32.5 -4.74
    9 -0.135 34.4 -4.63
    10 -0.124 36.4 -4.50
    11 -0.114 38.3 -4.36
    12 -0.105 40.1 -4.23

    Conversion of slopes to gains for a tower 'x' at 'eta'-bin 

    gain_x = gain_ideal(eta)*slope_ideal(eta) /slope_x

Energy_x/GeV = (ADC - ped)/gain_x
    Numerical values of gains to be leaded with the time stamp as of "2004-02-10 09:00:01". Format {tower, gain, again, flag}. The flag Renee attached to each tower is in the last column.

    Script slope2gains.tcl, used to convert slopes to gains.