Difference between revisions of "NaI status"

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(Bad Channels, things to check, fix)
(Bad Channels, things to check, fix)
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Noisy  
 
Noisy  
[Run1472-36.gif]
 
  
 +
[[Image:Run1472-36.gif]]
 
37
 
37
  
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74 looks like bad channel, DC offset was tuned twice and big , to be moved on another channel
 
74 looks like bad channel, DC offset was tuned twice and big , to be moved on another channel
 
125
 
125
 +
[[Image:Example.jpg]]

Revision as of 20:33, 29 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

Run1472-36.gif 37

maybe bad box : 127 to 139

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


No signal ADC 74 looks like bad channel, DC offset was tuned twice and big , to be moved on another channel 125 File:Example.jpg