CREAM 3 Data Quality Histograms

Data from 20071124: muon run, 8000 Events.
CVD threshold: 75 (standard). Prescaled at 80. (PXL HV standard at 1700 chan.)
NB: All thresholds were left in their original “standard” state.

• -194_set: All standard settings. (NB: This run has all detectors enabled.) Est. rate ~17.7 Hz.
• -195439: PMT 0, (TDC) thr 0 (PXL 0,0) set to 100. Est. rate ~19 Hz.
• -201805: PMT 0, (TDC) thr 0 - 3 set:

  Threshold	Old (standard) setting	New setting
  0	200	50
  1	500	350
  2	200	100
  3	500	350

  Est. rate ~18.5 Hz.

Note: This is ground data, so we don't expect data in higher channels.

20071124-194_set:

TDC hits per tube

ADC histograms

ADC 0


ADC 1


ADC 2


ADC 3


s3

Summing ADCs on a paddle

ADC 0


ADC 1


ADC 2


ADC 3

Cerenkov Histograms

Individual Tubes


Straight Sum

Top

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20071124-195439:

TDC hits per tube

ADC histograms

ADC 0


ADC 1


ADC 2


ADC 3


s3

ADC histograms, No TDC required

ADC 0


ADC 1


ADC 2


ADC 3


s3

Summing ADCs on a paddle

ADC 0


ADC 1


ADC 2


ADC 3

Cerenkov Histograms

Individual Tubes


Straight Sum

Top

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20071124-201805:

TDC hits per tube

ADC histograms

ADC 0


ADC 1


ADC 2


ADC 3


s3

Summing ADCs on a paddle

ADC 0


ADC 1


ADC 2


ADC 3

Cerenkov Histograms

Individual Tubes


Straight Sum

Top