Difference between revisions of "MainPage:Nuclear:KaonDetector:PMTCharacteristics:LogBook"

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| colspan="8" align="center" | To compare CUA's prototype to JLab (Yerevan) prototype, we decide to exchange PMTs. We are sending to JLab the PMT 9650 (Blast) and getting from them the PMT XXX (Blast), that they had characterized in their prototype.
 
| colspan="8" align="center" | To compare CUA's prototype to JLab (Yerevan) prototype, we decide to exchange PMTs. We are sending to JLab the PMT 9650 (Blast) and getting from them the PMT XXX (Blast), that they had characterized in their prototype.
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| 1115 || 01/17/2013 || Marco ||  XXX (Blast) || -1.80 (Camac) || Gain || Calibrating PMT that came from JLab. LED at 2.8 (15ns) with amplitude 8.5 (5V). Too much light. || [[File:1115.png|frameless]]
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| 1116 || 01/17/2013 || Marco ||  XXX (Blast) || -1.80 (Camac) || Gain || Same as run #1115, reducing light intensity. LED with amplitude 8 (5V). || [[File:1116.png|frameless]]
 
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Revision as of 11:45, 17 January 2013

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

LogBook on the CODA data acquisition, at CUA

Page 4, [3], [2], [1].

LogBook - Page 04
Run Number Date User PMT High Voltage Experiment Description and observations Image
1095 12/05/2012 Marco Ham. RA1815 -1.80 (Camac) Gain Using plastic dark box, with LED pulse with 7 (on 5V) at 3.5 (on 15ns) with ~1kHz. It is important to note that the PMT pulse has ~30ns and the integration window has 60ns (the maximum from the coincidence module). If the pulse arrives too delayed (~+20ns), part of it may be outside the the integration window. File:1095.png
1096 12/05/2012 Marco Ham. RA1815 -1.80 (Camac) Gain Repeating run #1095 with the minimum light that still give some pulses once in a while.
Error creating thumbnail: Unable to save thumbnail to destination
1097 12/06/2012 Marco Ham. RA1815 -1.80 (Camac) Prototype Running prototype test (cosmic rays) with 08 tiles (boxes 01, 02, 04, 05) with refractive index 1.030. Trigger PMTs at -1.95kV. Start 09:05 (12/06) and finished 11:44 (12/06) with 200 events. File:1097.png
1098 12/05/2012 Marco Ham. RA1815 -1.80 (Camac) Prototype Repeating run #1097 with more time. Problem with discriminator (3rd channel), triggering continuously. Turned everything off and changed to 5th channel. -
1099 12/05/2012 Marco Ham. RA1815 -1.80 (Camac) Prototype Repeating run #1097 with more time. Start 12:33 (12/06) and finished 09:38 (12/10) with 7669 events. 1099.png
1113 01/16/2013 Marco Ham. RA1815 -1.80 (Camac) Prototype Repeating run #1099, to make sure system is working after long shut down (Christmas break). Few events just for test.
Error creating thumbnail: Unable to save thumbnail to destination
1114 01/16/2013 Marco Ham. RA1815 -1.80 (Camac) Prototype Same as run #1113, overnight.
Error creating thumbnail: Unable to save thumbnail to destination
To compare CUA's prototype to JLab (Yerevan) prototype, we decide to exchange PMTs. We are sending to JLab the PMT 9650 (Blast) and getting from them the PMT XXX (Blast), that they had characterized in their prototype.
1115 01/17/2013 Marco XXX (Blast) -1.80 (Camac) Gain Calibrating PMT that came from JLab. LED at 2.8 (15ns) with amplitude 8.5 (5V). Too much light.
Error creating thumbnail: Unable to save thumbnail to destination
1116 01/17/2013 Marco XXX (Blast) -1.80 (Camac) Gain Same as run #1115, reducing light intensity. LED with amplitude 8 (5V).
Error creating thumbnail: Unable to save thumbnail to destination