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Tracker Performance Discussion #3

Date: 1st July 2015
Time: 16:30 UK time
Attendance: AD, CHeidt, CHunt, EO, CRogers, YPS, MU
Apologies: KL

Agenda

Testing tracker and reconstruction

“Raw” data: YPS & CHunt:

  • Yingpeng getting set up;
  • Chris Hu is running non-zero suppressed reconstruction to be able to see the full ADC distribution;
  • Debug histograming code in parallel to processing the data.
  • Plots required:
    • Pulse-height per channel; one histogram per channel channel;
    • Mask out “hot” channels at calibration level; add to bad channel list;
    • Hits above “2 PE” per plane;
    • Weighted mean pulse height per channel; plot per plane;
    • Generate list of dead/noisy channels;
      • E.g. dead channels observed equidistant from imagined centre line
    • Later:
      • Study timing wrt TOF

Cluster: CHunt

  • Has looked at a standard data set.  Observation that there are twice as many two-hit clusters than 1-hit clusters.  Check with Ed Santos’ thesis and Chris Heidt.
  • Make sure the “255” channels are placed in an “overflow” bin.
  • Plots we need:
    • N_chan/cluster: one plot per plane;
    • N_pe per cluster (same sets of plots as for raw);
    • Cluster position per plane

Space points: MU

  • Issues with using offline framework;
    • Agree: AD: will make consistent installation of third-party libraries. All will link against that.
  • N_chan per station
  • Kuno plot per station
  • x/y plot for 2-cluster space point and 3-cluster space points per plane
    • Plot projections with mean and rms per plane

Pattern recognition: CHunt (with AD help)

  • Has made individual Chi2 plots per track and per tracker;
  • Road-width cut needs to be added into the reconstruction.  CHu/AD will decide how to do it.
  • Plots required:
    • Plot road-width cut;
    • Plot chi2;
    • N_space_points per tracker;

Track fit: CHunt

  • Usual set of plots (pulls, chi2, etc.)
  • Loop back when other pieces are checked out.

Notes

Raw Data

  • YPS getting setup - ongoing, paperwork...
  • Non-zero suppressed ADC, NPE plots made - CHunt
  • We shouldn't be seeing 1 or 2 NPE clusters, but we are, may be bug in recon - CHunt
  • NPE distros looking better though - EO
  • Processed data will be stored at IC on /vols/fets2/Processed_Data

Clusters

  • N_chan / cluster, NPE / cluster plots made - CHunt

Spacepoints

  • DubVsTripSPRun7157002.pdf - Top middle is US tracker, top right is DS tracker (mislabelled) - MU
  • Central MAUS install at IC: /vols/fets2/software/maus/stable

Pattern Recognition

  • Combined x and y chisq of fits fixed - CHunt

Track Fit

  • No update

General Discussion

  • Dead channel hunting: moved from CHunt to CHeidt
  • Tracker data workshop: provisional date of this Monday, 10am, at RAL (MICE office)
  • MU very concerned about not having sufficient data to perform alignment, estimated 100k - 200k straight track triggers.
    • CR - need to evidence that, or request will be refused.
    • MU to add her workings, CR to analyse.
    • MU will make case for another data run at operations meeting this evening.

Next Meeting

  • Provisionally tomorrow at 16:30 BST

Phone Details

  • The four digit company id: 4673 (callers from outside the UK)
  • The pin number: 419357

Phone numbers:

UK (Imperial College --preferred) 0845 545 4460 English
Austria 0820 4000 1503 English
0820 4000 15 02 German
Belgium 070 35 99 45 English
070 35 99 94 Dutch
070 35 98 66 French
Canada 1 712 432 2832 English
1 712 432 2844 French
Germany 01803 001 178 English
01570 248 8303 English (mobile)
01803 001 177 German
01570 248 8101 German (mobile)
Ireland 0818 270 007 English
Italy 848 390 166 English
848 391 819 Italian
Netherlands 0870 001 901 English
0870 001 909 Dutch
Poland 0801 003 543 English
0801 003 533 Polish
South Africa 087 550 0375 English
Spain 902 885 318 English
902 881 200 Spanish
Sweden 0939 2066 400 English
0939 2066 300 Swedish
Switzerland 0848 560 190 English
0848 560 378 French
0848 560 347 German
0848 560 385 Italian
United Kingdom (PowWowNow) 0844 4 73 73 73 English
United States 1 415 363 0833 English

DubVsTripSPRun7157002.pdf (17.3 KB) Dobbs, Adam, 01 July 2015 17:17