Difference between revisions of "NaI status"
From Hall A Wiki
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==Bad Channels, things to check, fix== | ==Bad Channels, things to check, fix== | ||
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| + | From latest cosmcis run 1472 | ||
( in channel number = histogram number +1 ) | ( in channel number = histogram number +1 ) | ||
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Noisy | Noisy | ||
| + | [Run1472-36.gif] | ||
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| + | 37 | ||
maybe bad box : 127 to 139 | maybe bad box : 127 to 139 | ||
Revision as of 20:32, 29 October 2007
Look at data =
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
