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LogBook on the CODA data acquisition, at CUA
Page (last), [6], [5], 4, [3], [2], [1].
| 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
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| 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. | 
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| 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
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| 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
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| 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 9630 (Blast), that they had characterized in their prototype. | |||||||
| 1115 | 01/17/2013 | Marco | 9630 (Blast) | -1.80 (Camac) | Gain | Calibrating PMT that came from JLab. LED at 2.8 (15ns) with amplitude 8.5 (5V) at ~1kHz. Too much light. Attenuation analyzed with pulse ~1V@12ns; ratio = 13.0/16.2 | Error creating thumbnail: Unable to save thumbnail to destination
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| 1116 | 01/17/2013 | Marco | 9630 (Blast) | -1.80 (Camac) | Gain | Same as run #1115, reducing light intensity. LED with amplitude 8 (5V). Pedestal peak at channel 31.5 | Error creating thumbnail: Unable to save thumbnail to destination
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| 1117 | 01/17/2013 | Marco | 9630 (Blast) | -1.40 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1118 | 01/17/2013 | Marco | 9630 (Blast) | -1.50 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1119 | 01/17/2013 | Marco | 9630 (Blast) | -1.60 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1120 | 01/17/2013 | Marco | 9630 (Blast) | -1.70 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1121 | 01/17/2013 | Marco | 9630 (Blast) | -1.80 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1122 | 01/17/2013 | Marco | 9630 (Blast) | -1.90 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1123 | 01/17/2013 | Marco | 9630 (Blast) | -2.00 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1124 | 01/17/2013 | Marco | 9630 (Blast) | -2.10 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1125 | 01/17/2013 | Marco | 9630 (Blast) | -2.20 (Camac) | Gain | Changing HV. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1126 | 01/17/2013 | Marco | 9630 (Blast) | -1.80 (Camac) | Prototype | Same aerogel/prototype configuration as run #1097 (didn't remove aerogel to change PMT). Start running 01/17 (16:20) and end 01/18 (08:17). Attenuation ratio (analyzed with pulse ~1V@12ns): 15.0/16.3. Cosmic ray (or noise in trigger system) rate is too high, be careful. | Error creating thumbnail: Unable to save thumbnail to destination
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| 1127 | 01/18/2013 | Marco | 9630 (Blast) | -1.80 (Camac) | Prototype | Same as 1126, running for more statistics. Start at 01/18 (08:18) and end at 01/28 (13:25) with 273416 events. | File:1127.png |
