Difference between revisions of "05/12/2011 random coincidence cosmic test"

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(Created page with '[https://wiki.iac.isu.edu/index.php/N%27s_detector_calibration Go Back] The powers are: PS1 and PS2: -1000 V (the old 2-channel TENNELEC TC952) n's: -1100 V (the new 2-chan…')
 
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Let's do the '''random coincidence cosmic ray test'''.
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Let's do the '''random coincidence cosmic ray test 1'''.
  
 
PS1 and PS2 is about 30 cm away from each other. And let's look on the coincidence signal between PS1 and PS2:
 
PS1 and PS2 is about 30 cm away from each other. And let's look on the coincidence signal between PS1 and PS2:
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Let's do the '''random coincidence cosmic ray test''' again.
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Let's do the '''random coincidence cosmic ray test 2'''.
  
 
But now the distance between PS1 and PS2 is about 5 cm. And let's look on the coincidence signal between PS1 and PS2:
 
But now the distance between PS1 and PS2 is about 5 cm. And let's look on the coincidence signal between PS1 and PS2:
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|<math>\pm1.7</math>||70 min||<math>0.043\pm0.024</math>||<math>0.0007\pm0.0004</math>
 
|<math>\pm1.7</math>||70 min||<math>0.043\pm0.024</math>||<math>0.0007\pm0.0004</math>
 
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And below my scope pictures of this rear event:
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[[File:Rnd coinc cosmic test2.png | 800px]]

Revision as of 21:34, 12 May 2011

Go Back


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 1.

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 [math]10247\pm101.2[/math] 70 min [math]146.4\pm1.44[/math] [math]2.44\pm0.02[/math]
PS1 [math]12969\pm113.9[/math] 70 min [math]185.3\pm1.63[/math] [math]3.09\pm0.03[/math]
PS1+PS2 [math]3\pm1.7[/math] 70 min [math]0.043\pm0.024[/math] [math]0.0007\pm0.0004[/math]


And below my scope pictures of this rear event:

Rnd coinc cosmic.png


Let's do the random coincidence cosmic ray test 2.

But now the distance between PS1 and PS2 is about 5 cm. And let's look on the coincidence signal between PS1 and PS2:

total counts time counts/min counts/sec
PS1 [math]\pm101.2[/math] 70 min [math]146.4\pm1.44[/math] [math]2.44\pm0.02[/math]
PS1 [math]\pm113.9[/math] 70 min [math]185.3\pm1.63[/math] [math]3.09\pm0.03[/math]
PS1+PS2 [math]\pm1.7[/math] 70 min [math]0.043\pm0.024[/math] [math]0.0007\pm0.0004[/math]


And below my scope pictures of this rear event:

Rnd coinc cosmic test2.png

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