Difference between revisions of "CDC time spikes"

From GlueXWiki
Jump to: navigation, search
Line 17: Line 17:
 
Histograms of ADC value=100 threshold-crossing bins in individual straws (search started at bin 160)
 
Histograms of ADC value=100 threshold-crossing bins in individual straws (search started at bin 160)
 
{| border="0" cellpadding="2"  
 
{| border="0" cellpadding="2"  
|[[Image:run_31955_thr100_proto_xthr.png|thumb|x150px|ADC-value=100 crossing]]
+
|[[Image:run_31955_thr100_proto_xthr.png|thumb|x450px|ADC-value=100 crossing]]
 
|}
 
|}

Revision as of 18:06, 12 November 2012

Trigger signals

Scint and coinc logic signals, scope triggered on coinc (magenta)
Same, with TI busy signal (green)
Same, different timebase


Histograms of threshold-crossing bins in central bank of 16 straws, different thresholds (ignore the histo titles)

ADC-value=150 crossing (~approx ped + 5sigma)
3.5sigma crossing (approx ADC value 112 = (55 + 3x16.5))
ADC-value=100 crossing


Histograms of ADC value=100 threshold-crossing bins in individual straws (search started at bin 160)

ADC-value=100 crossing