Gain matching: Difference between revisions

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==7/16/16==
[[2nCor Equipment#2016-2017 IAC run on the 44 machine | Go back]]
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.  
==7/17/16==
Information about the run setup can be seen  [[Signal cable timing|here]]  (thresholds, source positioning, ect).


Discriminator thresholds:
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.
Trigger: 15 mv
 
PMT's: 60 mv


{| border="1" style="text-align: center"
! colspan="2"|Detector
! rowspan="2" | PMT
! rowspan="2"| High voltage
|-
| angle|| color
|-


| rowspan="2" | 30 
| rowspan="2" | Red
|Top 
| -1424
|-
|Bot
| -1458
|-


{| border="1" style="text-align: center"
| rowspan="2" | 90 
! rowspan="2"|Detector ||rowspan="2"|Color || rowspan="2"| Signal cable labels || colspan="2"| Count rate at -1700 V (Hz) || rowspan="2"|Difference
| rowspan="2" | Yellow
|Top 
| -1690
|-
|-
| Source in || Source out
|Bot
| -1597
|-
|-
| D30  || Red || D30T001 / D30B002|| 8.3 || 4.8 || 3.5
 
| rowspan="2" | 150  
| rowspan="2" | Blue
|Top 
| -1553
|-
|-
| D90  || Yellow || D90T003 / D90B004|| 2.4 || 0.6 || 1.8
|Bot
| -1595
|-
|-
| D150 || Blue || D150T005 / D150B006|| 3.7 || 1.67 || 2.0
 
|-
| rowspan="2" | 225  
| D225  || Wood || D225T007 / D225B008|| 0.8 || 0.4 || 0.4
| rowspan="2" | wood
|Top 
| -1700
|-
|-
|Bot
| -1678
|}
|}
[[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


Go back

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