Highlights fro TR Collaboration meeting CERN 12/11/2012
Experimental Setup = active regions View V View U Jura Saleve z y x -2 views -4 covers per view -2 SRB read via VME 12/11/122
Beam Profile The instrumented straws showed the radial beam profile Entries per Channel 12/11/123
Entries per Channel Beam Profile The straws instrumented have shown the radial beam profile SRB 3 SRB 2 12/11/124
Beam Profile The straws instrumented have shown the radial beam profile Entries per Channel SRB 3 SRB 2 Missing straws 12/11/125
Entries per Channel Beam Profile The straws instrumented have shown the radial beam profile Dead channel SRB 3 SRB 2 12/11/126
Burst Structure And burst time structure Events/333ms SOB EOB 12/11/127
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 12/11/128
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 12/11/129
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 12/11/1210
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 12/11/1211
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 12/11/1212
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 x10 11 prontons on T10) for CEDAR alignment Quality cuts applied to data contamination (<5 per mill) 12/11/1213
Run 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 ) 12/11/1214
Results Time (ns) The corrected CHOD time has been used to find the T0 for all channels. 12/11/1215
Results (drift time all ch) Drift time measurement has been performed using the T0 from CHOD Time (ns) 12/11/1216
Results (drift time ch 10) Time (ns) Drift time measurement has been performed using the T0 from CHOD 12/11/1217
Results (wire distance ch 10) Wire distance measurement has been performed using the drift velocity curve measured during the test beam Time (ns) 12/11/1218
Results (“assumed” drift velocity curve) Drift Time (ns) Wire Distance (mm) 12/11/1219
The End 12/11/1220
Run 368 Good Data 12/11/1221