Gain matching: Difference between revisions

From New IAC Wiki
Jump to navigation Jump to search
Burgjeff (talk | contribs)
No edit summary
Burgjeff (talk | contribs)
 
(13 intermediate revisions by the same user not shown)
Line 1: Line 1:
==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 in order to avoid double counting.  
==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.


Discriminator thresholds:
{| border="1" style="text-align: center"
 
! colspan="2"|Detector
Trigger: 35 mv
! rowspan="2" | PMT
 
! rowspan="2"| High voltage
PMT's: 50 mv
|-
 
| angle|| color
|-


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


{| border="1" style="text-align: center"
| rowspan="2" | 90  
! colspan="2"|Detector || colspan="2"| Count rate at -1700 V (Hz) || rowspan="2"|Difference
| rowspan="2" | Yellow
|Top 
| -1690
|-
|-
| angle|| color|| Source in || Source out
|Bot
| -1597
|-
|-
| 30  || Red || 0.85 || 0 || 0
 
| rowspan="2" | 150  
| rowspan="2" | Blue
|Top 
| -1553
|-
|-
| 90  || Yellow || 1.2  ||  0 || 0
|Bot
| -1595
|-
|-
| 150  || Blue || 0.80 || 0 || 0
 
|-
| rowspan="2" | 225  
| D225  || Wood ||0.09  ||  0 || 0
| 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