Difference between revisions of "NaI status"

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(Bad Channels, things to check, fix)
 
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= Look at data ==
 
= Look at data ==
 
[[Coulomb Sum Rule]]
 
[[Coulomb Sum Rule]]
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 +
 
Use :
 
Use :
  
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==Bad Channels, things to check, fix==
 
==Bad Channels, things to check, fix==
 +
 +
From latest cosmcis run 1472
  
 
( in channel number = histogram number +1 )
 
( in channel number = histogram number +1 )
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Noisy  
 
Noisy  
  
 +
37
  
 +
maybe bad box : 127 to 139
  
 
No signal PMT
 
No signal PMT
150 ( low gain ? )
+
150,67,71,91 ( will put HV to 0 since might be origin of noise )
  
  
 
No signal ADC
 
No signal ADC
74 looks like bad channel, DC offset was tuned twice and big , to be moved on another channel
+
150,
 +
215,
 +
262
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[[http://spreadsheets.google.com/pub?key=p6B1kjeTShOTaqsEPvA-WEA
 +
]]
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<HTML>
  
96 need to be recrimped
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</HTML>

Latest revision as of 00:44, 30 October 2007

Look at data =

Coulomb Sum Rule


Use :

.x online.C+("CSR",run)

latest run is 1307


Bad Channels, things to check, fix

From latest cosmcis run 1472

( in channel number = histogram number +1 )

Big pedestal value


Signal but negative signal ( Offset )


Noisy

37

maybe bad box : 127 to 139

No signal PMT 150,67,71,91 ( will put HV to 0 since might be origin of noise )


No signal ADC 150, 215, 262

[[http://spreadsheets.google.com/pub?key=p6B1kjeTShOTaqsEPvA-WEA ]]

<HTML>

</HTML>