Difference between revisions of "05/12/2011"

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|-
 
|-
 
!PS1  
 
!PS1  
−
|12969<math>\pm</math>113.9||70 min||185.3<math>\pm</math>||3.09<math>\pm</math>
+
|<math>12969\pm113.9</math>||70 min||<math>185.3\pm1.63</math>||<math>3.09\pm0.03</math>
 
|-
 
|-
 
!PS1+PS2  
 
!PS1+PS2  
−
|3<math>\pm</math>1.7||70 min||
+
|<math>3\pm1.7</math>||70 min||<math>0.043\pm0.024</math>||<math>0.0007\pm0.0004</math>
 
|}
 
|}

Revision as of 19:51, 12 May 2011

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The powers are: 

PS1 and PS2:  -1000 V (the old 2-channel TENNELEC TC952)
n's: -1100 V (the new 2-channel C.A.E.N N471)

The thresholds are: 

PS1 and PS2:  -80 mV
n's: -200 mV

The discriminator widths are: 

PS1: -20 ns
PS2: -10 ns
n's: -20 ns


Let's do the random coincidence cosmic ray test. PS1 and PS2 is about 30 cm away from each other. And let's look on the coincidence signal between PS1 and PS2:

total counts time counts/min counts/sec
PS1 10247±101.2 70 min 146.4±1.44 2.44±0.02
PS1 12969±113.9 70 min 185.3±1.63 3.09±0.03
PS1+PS2 3±1.7 70 min 0.043±0.024 0.0007±0.0004
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