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| | 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) | | 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) |
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Revision as of 11:52, 25 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 |
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 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 |
Switched HVBs 3 and 5 (all electronics swapped at the chamber)
 drift time, Al endplate, threshold 5#sigma |
Event pics
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) |
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 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 |
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 Amplitude of hit channels where hit precedes zero-crossing in another channel |
Compare resolution with channels 68 (on noisy board E4) and 148 (similar position on different board E14)
 Run 32488 channel numbers |
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Looking to see if zero-crossings are linked to hits in other channels. Zero-crossing time is the sample number when the adc content drops to 0 - pedestal is not subtracted. Pedestals are set to approx 60, with pedestal width ~ 16.
 Run 32488 channels in use |
 Channels with hit < 10 samples before zero-crossing in another channel |
 Channels with tracked hit < 10 samples before zero-crossing in another channel |
 Run 32495 channels in use |
 Channels with hit < 10 samples before zero-crossing in another channel |
 Channels with tracked hit < 10 samples before zero-crossing in another channel. Red spot = hit in 69, zero xing in 67. |
Switched HVBs 3 and 5 (first is at top, increase top to bottom, L to R)
 Channels with hit < 10 samples before zero-crossing in another channel |
 Channels with tracked hit < 10 samples before zero-crossing in another channel. |
