Difference between revisions of "Gain matching"

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Go back [[2nCor Equipment]]
+
[[2nCor Equipment#2016-2017 IAC run on the 44 machine | Go back]]
 
 
==7/16/16==
 
PMT top and bottom is in coincidence with a trigger placed 3" below the CF-252 source.
 
 
 
PMT pulses are widened to 500 ns in electronics in order to avoid double counting.
 
 
 
 
 
Discriminator thresholds:
 
 
 
Trigger: 35 mv
 
 
 
PMT's: 50 mv
 
  
 +
==7/17/16==
 +
Information about the run setup can be seen  [[Signal cable timing|here]]  (thresholds, source positioning, ect).
  
 +
Each PMT was individually placed in coincidence with a trigger at the center of the room. High voltage was then adjusted on each PMT until all rates were equal.
  
 
{| border="1" style="text-align: center"
 
{| border="1" style="text-align: center"
! colspan="2"|Detector || rowspan="2" |Count rate at -1700 V (Hz)
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! colspan="2"|Detector
 +
! rowspan="2" | PMT
 +
! rowspan="2"| High voltage
 
|-
 
|-
 
| angle|| color
 
| angle|| color
 
|-
 
|-
| 30  || Red || 0.85 
+
 
 +
| rowspan="2" | 30   
 +
| rowspan="2" | Red  
 +
|Top 
 +
| -1424
 
|-
 
|-
| 90  || Yellow || 1.2 
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|Bot
 +
| -1458
 
|-
 
|-
| 150  || Blue || 0.80 
+
 
 +
| rowspan="2" | 90 
 +
| rowspan="2" | Yellow
 +
|Top 
 +
| -1690
 +
|-
 +
|Bot
 +
| -1597
 +
|-
 +
 
 +
| rowspan="2" | 150   
 +
| rowspan="2" | Blue  
 +
|Top 
 +
| -1553
 
|-
 
|-
| 225  || Wood ||0.09 
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|Bot
 +
| -1595
 +
|-
 +
 
 +
| rowspan="2" | 225   
 +
| rowspan="2" | wood
 +
|Top 
 +
| -1700
 
|-
 
|-
 +
|Bot
 +
| -1678
 
|}
 
|}
  
  
Go back [[2nCor Equipment]]
+
[[2nCor Equipment#2016-2017 IAC run on the 44 machine | Go back]]

Latest revision as of 07:15, 18 August 2016

Go back

7/17/16

Information about the run setup can be seen here (thresholds, source positioning, ect).

Each PMT was individually placed in coincidence with a trigger at the center of the room. High voltage was then adjusted on each PMT until all rates were equal.

Detector PMT High voltage
angle color
30 Red Top -1424
Bot -1458
90 Yellow Top -1690
Bot -1597
150 Blue Top -1553
Bot -1595
225 wood Top -1700
Bot -1678


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