Difference between revisions of "05/13/2011 coincidence test"

From New IAC Wiki
Jump to navigation Jump to search
Line 36: Line 36:
 
|-
 
|-
 
!PS1
 
!PS1
−
|2823<math>\pm</math>53.1||20 min||2.35<math>\pm</math>0.04
+
|<math>2823\pm53.1</math>||20 min||<math>2.35\pm0.04</math>
 
|-
 
|-
 
!PS2
 
!PS2
−
|3091<math>\pm</math>55.6||20 min||2.57<math>\pm</math>0.05
+
|<math>3091\pm55.6</math>||20 min||<math>2.57\pm0.05</math>
 
|-
 
|-
 
!PS1+PS2  
 
!PS1+PS2  
−
|93<math>\pm</math>9.6||20 min||<math>(7.7\pm0.8)\cdot 10^{-2}</math>
+
|<math>93\pm9.6</math>||20 min||<math>(7.7\pm0.8)\cdot 10^{-2}</math>
 
|}
 
|}
  

Revision as of 22:01, 13 May 2011

Go Back

Set up like that:

Detector1.png

the distance between PS and n's PMT is abot 80 cm


The voltages and thresholds are as below. Note: I increased my thresholds for PS1 and PS2 from 80 mV up to 100 mV according to mu previous calibration threshold line.

PMT voltage, V threshold, mV discr. width, ns
PS1 -1500 -80 100
PS1 -1500 -80 100
n's -1500 -200 10



Let's do first the coincidence test PS1+PS2

counts time counts/sec
PS1 [math]2823\pm53.1[/math] 20 min [math]2.35\pm0.04[/math]
PS2 [math]3091\pm55.6[/math] 20 min [math]2.57\pm0.05[/math]
PS1+PS2 [math]93\pm9.6[/math] 20 min [math](7.7\pm0.8)\cdot 10^{-2}[/math]


The scope picture of PS1+PS2 coincidence event like:

Cosmic coinc PS1 PS2.png

Retrieved from "https://wiki.iac.isu.edu/index.php?title=05/13/2011_coincidence_test&oldid=62941"