Difference between revisions of "NaI status"
From Hall A Wiki
| Line 24: | Line 24: | ||
Noisy | Noisy | ||
| − | + | maybe bad box : 127 to 139 | |
No signal PMT | No signal PMT | ||
| − | 150 ( | + | 150 ( 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 | 74 looks like bad channel, DC offset was tuned twice and big , to be moved on another channel | ||
| − | + | 125 | |
| − | + | ||
Revision as of 21:59, 27 October 2007
Look at data =
Use :
.x online.C+("CSR",run)
latest run is 1307
Bad Channels, things to check, fix
( in channel number = histogram number +1 )
Big pedestal value
Signal but negative signal ( Offset )
Noisy
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
