MainPage:Nuclear:KaonDetector:PMTCharacteristics:LogBook

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⇐ Back to the PMT Characteristics page
⇒ Go to Summer 2012 work page

LogBook on the CODA data acquisition, at CUA

Page (last), [6], [5], [4], [3], [2], [1].

LogBook - Last Page
Run Number Date User PMT High Voltage Experiment Description and observations Image
2759 11/12/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Gain LED (green) gain calibration for NPS light yield. Na22 source is also inside, so may have noise. Rate of ~6.5kHz. T=18oC. SEP: 66.67 (fit range 50-85). PED: 27.66 (fit range 25-35).
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2760 11/12/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Gain Same as 2759, reduce light intensity. SEP: 63.92 (fit range 50-85). PED: 27.65 (fit range 25-35).
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2761 11/12/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Gain Same as 2760; source removed from dark box. SEP: 67.41 (fit range 50-85). PED: 27.63 (fit range 25-35).
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2762 11/12/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Gain Same as 2761; slightly higher light intensity. SEP: 67.78 (fit range 50-85). PED: 27.72 (fit range 25-35).
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2763 11/12/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Gain Light intensity brought to zero (width=0). SEP: 61.98 (fit range 50-85). PED: 27.63 (fit range 25-35).
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2766 11/12/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Light Yield Crystal BTCP ###, wrapped with specular reflector (low statistics - 1st test). Na-22 source. T=~13oC (thermometer not in the right position). Mean peak: 353.40 (fit range 170-800).
LY=18.0 pe/MeV
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2767 11/12/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Light Yield Same as 2766, high statistics (~900k evts). Peak center: 329.02 (fit range 170-800).
LY_fit= pe/MeV
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2768 11/17/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Light Yield CRYTUR 10cm sample crystal, wrapped with specular reflector. 18 oC (thermometer positioned). Peak center: 286.78 (fit range 170-400). SEP: 70.35 (fit range 50-85). PED: 27.36 (fit range 25-35).
LY_fit=11.8 pe/MeV
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2769 11/18/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Light Yield CRYTUR 10cm sample crystal, wrapped with ~5 layers of teflon. T=18oC (2 hours of stabilization only). Peak center: 444.07 (fit range 170-800). SEP and PED: same as 2768 (not enough stats.)
LY_fit= 18.97 pe/MeV
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2771 11/19/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Light Yield Same as 2769, with temperature stable for the whole night; 900k evts.
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2774..2779 11/24/2015 Marco XP2262 (SN 34426) -2.300 (NIM) Light Yield CRYTUR 10 cm scan. Same configuration as 2769. Running 10 minutes per position, in steps of 1cm. File:2774.png