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Straw DAQ Linux Machine: strawtrack1.fnal.gov Location: Lab 3 Machine not accessible remotely Straw Analysis Linux Machine: ppdilclaser3.fnal.gov Location:

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Presentation on theme: "Straw DAQ Linux Machine: strawtrack1.fnal.gov Location: Lab 3 Machine not accessible remotely Straw Analysis Linux Machine: ppdilclaser3.fnal.gov Location:"— Presentation transcript:

1 Straw DAQ Linux Machine: strawtrack1.fnal.gov Location: Lab 3 Machine not accessible remotely Straw Analysis Linux Machine: ppdilclaser3.fnal.gov Location: Sidet Machine is accessible remotely LOGIN from any linux machine kinit username (ie. kinit hogann) slogin Location of Data files ~ilcuser/straw/arco2/hv1350/ ~ilcuser/straw/arco2/hv1400/ ~ilcuser/straw/arco2/hv1450/ ~ilcuser/straw/arco2/hv1500/ Location of Analysis Files and Executables ~ilcuser/straw/ana/ To run analysis: cd ~ilcuser/straw/ana edit runlist file to indicate data to analyze type:./mu2eprot.exe and enter 1, or 2 for gas type (1=Arco2, 2=ArEthane) job creates a histogram file “result.his” -1 means to ignore run 0 means to include run Data Files in zero-suppressed text format

2 Screen Shot of Raw Data (All in Text Format)

3 Screen Shot of Zero-Suppressed Data (All in Text Format) TDC Slot Number TDC Channel Number TDC Time (counts) Event ID To create zero-suppressed data format, for example, type: cat straw out | awk -f ~ilcuser/straw/zsuppressed.awk >& straw z

4 Mapping into LeCroy 3377 TDC channels Lab 3 Chamber (Upper Chamber) PAB Chamber (Lower Chamber) scintillator BNL-871 chamber electronics cards

5 Lab 3 Chamber (Upper Chamber) PAB Chamber (Lower Chamber) Numbering Scheme in Analysis

6 Stage 1: Do distance-to-time (X-T) calibration 1. Loop over all events in all files in runlist 2. Fill histograms used for inverting the distance-to-time relationship. Only works if illumination in straw is uniform. Stage 2: Create histograms for track angle correction. 1. Loop over all events in all files in runlist 2. Make list of complementary pairs of hits 3. Use XT calibration histogram to convert time to distance. 3. Mark the drift “sense” of the hits. drift sense = + or Fill in histogram of SOD versus (drift sense)*(track angle) 5. Do simple analysis of where the inefficient hits are in the straw 6. Do simple analysis of where the noise hits are. Stage 3: Create histograms for residual in-cell correction. This correction is very small. It corrects for non-linearities in the XT calibration.

7 Channel Number Lecroy 3377 TDC counts In-time Cosmic Hits ArCO2 HV=1350 no ethanol quenching

8 Channel Number Lecroy 3377 TDC counts In-time Cosmic Hits ArCO2 HV=1400 no ethanol quenching

9 Straw Radius Units track near wire track near wall ArCO2 HV=1350 no ethanol quenching Gaussian resolution ~ 350 microns per hit No Corrections applied

10 Straw Radius Units track near wire track near wall ArCO2 HV=1400 no ethanol quenching Gaussian resolution ~ 312 microns per hit No Corrections applied


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