Difference between revisions of "CDC 216 channels"

From GlueXWiki
Jump to: navigation, search
Line 52: Line 52:
 
|[[Image:cdc_run_32488_amp71zx.png|thumb|x250px|Ch 71 amplitude for events with and without zero-crossings (after pedestal subtraction)]]
 
|[[Image:cdc_run_32488_amp71zx.png|thumb|x250px|Ch 71 amplitude for events with and without zero-crossings (after pedestal subtraction)]]
 
|-
 
|-
|[[Image:cdc_run_32488_zthr71.png|thumb|x250px|Zero-crossing time (after pedestal subtraction)]]
+
|[[Image:cdc_run_32488_zthr71.png|thumb|x250px|First zero-crossing time]]
 
|[[Image:cdc_run_32488_hitbefzthr71.png|thumb|x250px|Channels with a hit before a zero-crossing in ch 71 in the same event]]
 
|[[Image:cdc_run_32488_hitbefzthr71.png|thumb|x250px|Channels with a hit before a zero-crossing in ch 71 in the same event]]
 
|-
 
|-

Revision as of 14:11, 19 September 2013

Run 32488 channels in use
max amp histo, threshold 5#sigma
drift time, threshold 5#sigma
drift time (zoomed in), threshold 5#sigma
resolution, threshold 5#sigma
drift time for all channels in each of 3 fadcs
drift time for all channels in each HVB
resolution, using different tzero for each fadc, threshold 5#sigma
resolution, all straws
resolution, ch 101 (A4 ch 6)

Run 32495 channels in use
drift time, CF endplate, threshold 5#sigma
drift time, center, threshold 5#sigma
drift time, Al endplate, threshold 5#sigma

drift time, CF endplate, threshold 5#sigma
drift time, threshold 5#sigma
drift time, all hits belong to track
drift time, early hits reassigned to t0, all hits belong to track

These data (run 32488) were recorded using a filter in the event readout list, so only channels with 6 consecutive samples exceeding a threshold of 116 were recorded, provided that 5 channels had 8 consecutive samples over 124. (pedestal ~ 60, #sigma ~ 16)

Run 32488 events in ch 71
Run 32488 events in ch 71 zoomed
Ch 71 amplitude for events with and without zero-crossings (after pedestal subtraction)
First zero-crossing time
Channels with a hit before a zero-crossing in ch 71 in the same event
Channels with a hit before another channel with a zero-crossing in the same event
As left, zoomed in