Difference between revisions of "Pedestal"
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{| border="1" cellpadding="2" | {| border="1" cellpadding="2" | ||
|width="960pt"|[[Image:pedestal_event_switched_1_15.jpg|thumb|none|960px|Pedestal for one event]] | |width="960pt"|[[Image:pedestal_event_switched_1_15.jpg|thumb|none|960px|Pedestal for one event]] | ||
| + | |} | ||
| + | This shows that switching ADC contributes about 100ch to the difference in pedestal. | ||
| + | |||
| + | ====One event, different preamps==== | ||
| + | To see if the largest and smallest pedestals are correlated with the shaper channels | ||
| + | {| border="1" cellpadding="2" | ||
| + | |width="960pt"|[[Image:pedestal_event_diff_preamps.jpg|thumb|none|960px|Pedestal for one event, preamps 3 and 4, ADC half range]] | ||
|} | |} | ||
Revision as of 09:37, 16 July 2010
Pedestal mean
Pedestal sigma
Pedestal for one event, channels 1 and 15, normal and switched
Pedestal mean
Pedestal mean (channels) vs time - each point is an average of 1000 events
Pedestal sigma
Pedestal sigma (channels) vs time - each point is an average of 1000 events
Just one event
Pedestal for one event
Pedestal for one event - switched channels 1 and 15 between shaper and ADC
This shows that switching ADC contributes about 100ch to the difference in pedestal.
One event, different preamps
To see if the largest and smallest pedestals are correlated with the shaper channels
