update on ICD calibration

1
update on ICD calibration
offsets
box 12 2 populations
same behavior in the 3 other quadrants

• slope is generally higher in ICD than in
  calorimeter
• small slopes correspond to box 12
• ?hardware problem on ICD-drawer reported by Dean
  during last meeting creates about 15 lower
  pulses
• ?calibration coefficients should be corrected

slope a
ratio g
2
DAC-scaling
0.987
?rescaling of DACDAC/1.145 ?fits with free
offset
3
nlc-parameter
0.124
0.303
0.305
0.332
?fixing all ICD offsets to 15
0.332
0.280
0.289
0.292
bad channels
4
ICD bad channels

• on quadrate 1
• 46 channels with very high offsets
• 1710-1715 2286-2291 4014-4019 8622-8627
• 16 channels messy 4590-4595

• 1 channels dead 6318