CREAM 3 Data Quality Histograms

Data from 20071119: muon run, ~6600 Events.
CVD threshold: 75 (standard). Prescaled at 85.

• -023201: Reduced CDV HV by an estimated 100 V: from 2125 to 2016 TCD Chan and 1875 to 1766 TCD Chan (HV from myl and myr, respectively). 6687 events. Rate estimated at 17.5 Hz.
• -024030: CVD at nominal HV (2125 and 1875 TCD Chan). 6699 events. Estimated rate ~18 Hz.
• -024918: Lowered CVD HV by 325 TCD Chan to 1800 and 1550 TCD Chan, respectively. 6600 events. Est. rate ~17.5 Hz.
• -031338: Raised PMT 0 HV (ganged with PMT 1 on concentrator pxl) from nominal 1700 TCD Channel to 1775 TCD Chan. Best extrapolation is that this corresponds to 3035V. 6600 events. Est rate ~18 Hz.

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

20071119-023201:

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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20071119-024030:

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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20071119-024918:

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

---

20071119-031338:

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