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** Setup of DAQ x86l-131 (outside pocket) **
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Used FEBEX GUI to set thresholds for all channels.
Using ~65 mV pulser input, find 3000/0xbb8 (decimal/hex) to be a robust level where pulser is always seen and the trigger level is well above noise.
We expect much higher real detector signals so this should be an appropriate trigger.
Set channel trigger mask to:
0x0000, 0x,0000, 0x0000, 0xcf57
This will trigger readout on n-sides 1-3, 5, 7, the DSSD and the crystal PD.
(pad in slot #7 = pad 6)
Triggers are turned off for all p-strips, unconnected channels and the n-side of pad 4 since that cannot be properly biased.
See some high frequency noise on all channels so extended integration time of hit finder to integrate this out.
Hit finder params set to:
TRIG_SUM_A 20
TRIG_GAP 10
TRIG_SUM_B 21
Trace length (FEB_TRIG_LEN) is set at 3000 and the trigger delay at (FEB_TRIG_DELAY) 500
Sparsifying turned on so if the hit finder doesn't find at least one hit on a given channel, the trace for that channel will not be saved.
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** Setup of DAQ x86l-124 (inside pocket) **
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The inner pocket n-sides seem to see more noise and the trigger rate is not as stable -> additional component due to fluctuating noise.
Set up similarly to x86l-131 in terms of hit finder parameters, thresholds etc.
Trigger mask is set to:
0x0000, 0x,0000, 0x0000, 0xcf5b
This will trigger readout on n-sides 1,2,4,5,7, the DSSD and the crystal PD.
Triggers are turned off for all p-strips, unconnected channels and the n-side of pad 3 since that cannot be properly biased. |