Difference between revisions of "MainPage:Nuclear:KaonDetector:PMTCharacteristics:LogBook:pag02"

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| <font size="2">'''[[MainPage:Nuclear:KaonDetector:PMTCharacteristics|&lArr; Back to the PMT Characteristics page]]'''</font>
 
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== LogBook on the CODA data acquisition, at CUA ==
 
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<font size="4">Page 2, [[MainPage:Nuclear:KaonDetector:PMTCharacteristics:LogBook:pag01|[1]]].</font>
 
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{| border="1" style="float:auto; text-align:center; font-size:90%; width:100%; background:#f0f0f0; border-collapse: collapse; border-width: 1px; border-style: solid; border-color: #000"
 
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|+ <font color="blue" size="3"><b>LogBook - Page 02</b></font>
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:5%;" | Run Number
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:8%;" | Date
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:8%;" | User
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:5%;" | PMT
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:5%;" | High Voltage
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:12%;" | Experiment
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:35%;" | Description and observations
 
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! "background:#f5f5f5;" style="text-align:center; background:lavender; font-weight:bold; width:18%;" | Image
 
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| 635 || 05/25/2012 || Marco || 09561 || -1.800 || PMT Scanning || Remove LED, insert another paper attenuator (working now with 2 layers), cut a piece of the blue rubber that protects the LED contacts (trying to make better contact). Increase pulse for pot high 10 (at +5V) and keep width 4 (at 15ns). Scanning with 10x10x1k. Reference PMT ([[:File:635_ref.png|Ref_635]]) really stable now! Two suspects: the LED must work with 5V for this very fast pulse (don`t know the resistor that is connected in series with it) or the bad contact was fixed. || [[File:635.png|frameless]]
 
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| 636 || 05/25/2012 || Marco || 09561 || -1.798 || PMT Scanning || Working in the same conditions of run #635. 100x100x1k scanning. Reference PMT signal: [[:File:636_ref.png|Ref_636]]. Color scale in number of photoelectrons (calibration in run #558). Now the LED is constant! It is important to say that the amount of light (using just two attenuator papers) is big. || [[File:636.png|frameless]]
 
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| 640 || 05/30/2012 || Nathaniel || 09561 || -1.700 || PMT Gain || I know am running similar tests to the gains tests in runs 556-563. However this time I am using Dark Box 1 instead of Dark Box 2. This will allow systematic error analysis. || [[File:640.gif|frameless]]
 
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Revision as of 17:34, 30 May 2012

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