Difference between revisions of "05/10/2011"

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The powers are:
 
The powers are:
  
  PS1 and PS2:  -1000 V
+
  PS1 and PS2:  -1000 V (but different power supply, the old one TENNELEC TC952)
  n's: -1100 V
+
  n's: -1100 V (but different power supply, the new one C.A.E.N N471)
  
  
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!PS1
 
!PS1
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|187||160||
 
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!PS2
 
!PS2
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|187||170||
 
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!PS1+PS2
 
!PS1+PS2
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!n's  
 
!n's  
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Revision as of 16:16, 10 May 2011

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continue...the same set up as before, the distances are the same:

Detector1.png


But now I am going to increase the power supply for HAMAMATSU, adjust threshold and see what happens.


The powers are:

PS1 and PS2:  -1000 V (but different power supply, the old one TENNELEC TC952)
n's: -1100 V (but different power supply, the new one C.A.E.N N471)


The thresholds were:

PS1 and PS2:  -80 mV
n's: -60 mV


Let see what we have. First he CF-243 source is far far away (sealed in the safe):

counts/min (1 min test) counts/min (1 min test) counts/min (5 min test) counts/min (5 min test) avg counts/min
PS1 187 160
PS2 187 170
PS1+PS2
n's 205 204