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Highlights fro TR

Highlights fro TR. Collaboration meeting CERN 12/11/2012. Experimental Setup. y. 2 views 4 covers per view 2 SRB read via VME. z. x. Jura. Saleve. View V. View U. = active regions. Beam Profile. The instrumented straws showed the radial beam profile . Entries per Channel.

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Highlights fro TR

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  1. Highlights fro TR Collaboration meeting CERN 12/11/2012

  2. Experimental Setup y • 2 views • 4 covers per view • 2 SRB read via VME z x Jura Saleve View V View U = active regions

  3. Beam Profile • The instrumented straws showed the radial beam profile Entries per Channel

  4. Beam Profile • The straws instrumented have shown the radial beam profile Entries per Channel SRB 2 SRB 3

  5. Beam Profile • The straws instrumented have shown the radial beam profile Missing straws Entries per Channel SRB 2 SRB 3

  6. Beam Profile • The straws instrumented have shown the radial beam profile Dead channel Entries per Channel SRB 2 SRB 3

  7. Burst Structure • And burst time structure Events/333ms SOB EOB

  8. Bad Words and Data Contamination • Data suffers of contamination due to lost of part of data structure, some times this is recognizable and data can be used. But in a lot of cases this is not possible Spill Time Structure Events/333ms

  9. Bad Words and Data Contamination • Data suffers of contamination due to lost of part of data structure, some times this is recognizable and data can be used. But in a lot of cases this is not possible Beam Profile Structure Entries per Channel

  10. Bad Words and Data Contamination • With the threshold equalization we have seen a strange behavior, not present channels start to populate when at least one channel increase beyond 40Hz Entries per Channel * Spill width

  11. Bad Words and Data Contamination • With the threshold equalization we have seen a strange behavior, not present channels start to populate when at leas one channel increase beyond 40Hz Entries per Channel * Spill width

  12. Bad Words and Data Contamination • With the threshold equalization we have seen a strange behavior, not present channels start to populate when at leas one channel increase beyond 40Hz Entries per Channel * Spill width

  13. Data Selection • Readout problems -> data selection • Mismatch between the SRBs number of triggers • “Bad Words” • Thresholds ok from run 388, 1.25V before • Analysis performed on run 368, taken in low intensity conditions (0.1 x1011prontons on T10) for CEDAR alignment • Quality cuts applied to data contamination (<5 per mill)

  14. Run 368 • 300 out of ~600 bursts match triggers quality cut (same number of triggers in the SRBs) • 132 bursts out of 300 good for data analysis (contamination lower than 5 per mill )

  15. Results The corrected CHOD time has been used to find the T0 for all channels. Time (ns)

  16. Results (drift time all ch) Drift time measurement has been performed using the T0 from CHOD Time (ns)

  17. Results (drift time ch 10) Drift time measurement has been performed using the T0 from CHOD Time (ns)

  18. Results (wire distance ch 10) Wire distance measurement has been performed using the drift velocity curve measured during the test beam Time (ns)

  19. Results (“assumed” drift velocity curve) Wire Distance (mm) Drift Time (ns)

  20. The End

  21. Run 368 Good Data

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