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update on ICD calibration

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problem on ICD-drawer reported by Dean during last meeting ... on quadrate 1: 4 6 channels with very high offsets: 1710-1715 2286-2291 4014-4019 8622-8627 ... – PowerPoint PPT presentation

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Title: 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
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