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Tracker@X5.Beam.Test System Aspects and Preliminary Results

Tracker@X5.Beam.Test System Aspects and Preliminary Results. Carlo Civinini INFN-Firenze (on behalf of the Tracker Test Beam community). Summary. The TIB layer 3 structure The TOB modules The TEC petal DAQ Preliminary results. Beam Test Motivations.

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Tracker@X5.Beam.Test System Aspects and Preliminary Results

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  1. Tracker@X5.Beam.TestSystem Aspects and Preliminary Results Carlo Civinini INFN-Firenze (on behalf of the Tracker Test Beam community)

  2. Summary • The TIB layer 3 structure • The TOB modules • The TEC petal • DAQ • Preliminary results C. Civinini INFN-Firenze

  3. Beam Test Motivations • Validation of the System Test results using a 25 ns beam (TIB layer 3 + TEC petal) • Test of the TIB-IB2, TOB-OB2, TEC pre-production modules (6+6+10) • DAQ integration test • Fully optical read-out (quasi-final components) • Test of the ‘counting room’ power supply prototypes with long (LIC-type, 125m) cables • TIB Layer-3 (quasi) final mechanics +mother cable • TEC cooling plant C. Civinini INFN-Firenze

  4. TIB Integration 6 IB2 modules 4 mother cables 4 CCUs 6 Analog opto-hybrids Layer3 mechanics C. Civinini INFN-Firenze

  5. Comments on TIB integrations • The full system has been assembled and tested (step-by-step) in Florence TIB - System Test • Mother cable, CCU and the interconnect board shown no particular problem • Analog opto-hybrid (AOH) installation is easy, provided none of them have to be removed after the detectors have been mounted • The modules installation is not so simple: mounting tools should be used for the final layer assemblies • The cooling circuit and the thermal coupling have been qualitatively tested using this structures  Video C. Civinini INFN-Firenze

  6. TEC petal 5 Ring-7 Hybrids 4 Ring-6 Modules 1 Ring-5 Stereo Module 4 Ring-4 Modules 3 Ring-3 Hybrids 2 Ring-1 Stereo Frames C. Civinini INFN-Firenze

  7. Comments on TEC integrations • Is the first time that a cooled TEC petal equipped with modules (normal and stereo) has been tested in a test beam. • The integration of modules and all other components, fresh from the production lines, needed some days of debugging. • Cooling: Louvain Cooling Plant • ISEG power supply + 3 * 45m of multi-service cable A ring 5 stereo module C. Civinini INFN-Firenze

  8. TOB Detectors • Six TOB – OB2 modules • ST 500mm thick sensors - 183mm pitch • 4 APV per module • Thermally stabilized box to prevent possible laser gain variations • OTRI interface card • Complete optical read-out C. Civinini INFN-Firenze

  9. TIB Trasportation • The original idea was to fully test the detector in Florence and transport it to CERN disassembled not practical • Particular attention to the structure support for transportation: soft and dust free material with no rigid connection to the external plastic box • All ‘non-rigid’ components (mainly AOH fibres) have been fixed to the structure support to avoid damages due to resonant vibrations • Not a single strip was lost C. Civinini INFN-Firenze

  10. TIB Installation (i) C. Civinini INFN-Firenze

  11. TIB Installation (ii) C. Civinini INFN-Firenze

  12. TIB Power Supplies Caen counting-room Prototype + 90 m of LIC17 cable + 35 m of LIC11 cable Laben counting-room Prototype An interlock system has been implemented (220V mains, temperature and relative humidity are controlled) C. Civinini INFN-Firenze

  13. 90 + 35 meters PS Cables LIC17 Cable Installation optimized for picking-up noise (done on purpose…) C. Civinini INFN-Firenze

  14. TIB Comments on installation • Begins monday 12 first data onthursday 15 (4 days before the official beam starting date) • No problems at all • Two temperatures and humidity probes continuously monitor the TIB detector and drive the Power Suppliesinterlock system • Hybrids DCU are read-out • 6 bad strips out of 3072 C. Civinini INFN-Firenze

  15. TIB: the ‘crew’ • Bari: • N. Defilippis, D. Giordano, S. My, V. Radicci • Catania: • M. Chiorboli • Firenze: • Bocci, M. Brianzi, V. Ciulli, C. Civinini, F. Maletta, • M. Marchettini, M. Meschini, S. Paoletti, R. Ranieri • Pisa: • T. Boccali, L. Borrello, M. D'Alfonso, R. Dell'Orso, S. Dutta, • A. Giammanco, A. Giassi, F. Palla, F. Palmonari, G. Segneri, • P. G. Verdini C. Civinini INFN-Firenze

  16. And the TEC one… Wolfgang Adam, Roman Adolphi, Michel Ageron, Wim Beaumont, Didier Contardo, Benedikt Hegner, Waclav Karpinski, Stefan Kasselmann, Katja Klein, Nick Lumb, Guillaume Lutter, Otilia Militaru, Stephane Perries, Oliver Pooth, Xavier Rouby, Roger Strub, Benjamin Trocme, Valery Zhukov I apologize for all TOB people… C. Civinini INFN-Firenze

  17. DAQ (i) • Debugging phase: • Three systems running in parallel (TIB, TOB, TEC) • Easy integration from DAQ point of view: 2 hours to start data taking once HW is OK  smooth running • FED sampling tuning with ticks + Opto gain adjustment • Timing scan (Latency+PLL)  best working point • User friendly Run Control (direct XDaqWin as backup) • TIB + TOB integration • Done in few hours demonstrate commission capability of the system • Trigger latency +PLL scan for time alignment of the two detectors one respect to the other and with respect to the beam • Smooth run, only few crashes • TEC integration failed due to the ring instabilities C. Civinini INFN-Firenze

  18. RU 0 - FED (TOB) Analog opto receivers RU 1 - FED (TIB) C. Civinini INFN-Firenze

  19. DAQ Performances • Up to 2500 events / spill • Limitations due to ROOT compression algorythm performances • 20 Mb/spill ~ 1 Mb/s • Stable running except • Noise reset on TOB AOH • Ring problem on TEC DOH-ICB • FED hanging on configuration (TIB box) C. Civinini INFN-Firenze

  20. DAQ People • Slow control & Safety • E. Carrone, A. Tsirou, P.G Verdini, O. Militaru • Fast Control & database • F.Drouhin, L. Gross, D. Vintache • Trigger and Beam control • W. Adam, W. Beaumont, P.G Verdini • Run Control • R. Chierici, F. Drouhin, M. Gulmini • Data acquisition & Monitoring • L.Mirabito • Data Handling Offline, FU+ORCA integration • T.Boccali, G. Bruno,V. Ciulli, M. D’Alfonso , N. DeFilippis, I.Tomalin, I.Reid C. Civinini INFN-Firenze

  21. Quasi online analysis • ORCA based TT6 analysis program • Read APV raw data (from DAQ root files) • Calculates pedestals and noise • Mask bad strips if noisy or dead • Subtract common mode noise (CM median). • Return signal on strips • Search for clusters using the 3 thresholds algorithm (4,3,5) • Store cluster information and randomly selected events in two ntuples • Two kumac are used to monitor the data C. Civinini INFN-Firenze

  22. Preliminary results • Timing and opto-hybrid parameters optimizations • S/N measurements (Peak, Deconv., position dependence) • Voltage scan • Overlap between detectors in different TIB strings • APV parameters optimization using the 25ns beam (triggering on consecutive particles) • Counting-room Power supply prototypes + cables performance studies • Lead block in front of the TOB and TIB to study the primary interaction multiplicity and pedestal-CMN calculation in a dense particle environment C. Civinini INFN-Firenze

  23. Cluster S/N (i) Peak Muon run Bias =300V TIB S/N ~ 26 Counting-room TIB Power supplies S/N C. Civinini INFN-Firenze

  24. Cluster S/N (ii) TIB 320mm Counting-room TIB Power supplies TOB 500mm C. Civinini INFN-Firenze

  25. Cluster S/N (iii) TEC 500mm Ring 5 stereo detector C. Civinini INFN-Firenze

  26. Beam profiles (muons and pions) Muons on TIB Pions on TIB C. Civinini INFN-Firenze

  27. Beam profile on TOB (pions) The TOB box is horizontally tilted C. Civinini INFN-Firenze

  28. Signal shape (i) TIB Peak Muons run Bias=300V ISHA=45 VFS=60 Noise~1 ADC counts 55ns peaking time CR-RC Fit C. Civinini INFN-Firenze

  29. Correlated noise TIB Deconvolution Bias =300V Noise correlation Each channel noise is anti-correlated(~ -15%) with the first neighborhoods. Almost the same results have been observed(*) using the ARC system and analyzed with an independent program. The correlation disappear for the second strips Strip # (*)http://hep.fi.infn.it/CMS/moduletest/tkwgen03/carlo.pdf C. Civinini INFN-Firenze

  30. TIB Overlap Correlationbetween two detectors in different strips ~15-18 stripequivalent to ~2mm C. Civinini INFN-Firenze

  31. TIB Voltage Scan Plateau at around S/N~18 C. Civinini INFN-Firenze

  32. S/N: 17.6 TIB-deconv. S/N: 17.6 TIB-deconv. TIB Power Supplies comparison • From data taken in similar conditions with both ‘counting-room type’ prototypes… • Preliminary data: no evident differences ! • Stable performances during ~18 days of data taking  not a single spurious Reset on TIB C. Civinini INFN-Firenze

  33. Previous bunch particle signal contamination Vs. VFS Data taken triggering on 00110025ns structured events and reading-out the APV in time to get the second particle On time particle Previous bunch hits DecreasingVFS the effect reduces Warning: the absolute normalization should be checked carefully offline C. Civinini INFN-Firenze

  34. Lead Block showering on TOB 50000/70000 events have only one cluster on the first TOB detector; 13000/70000 events have three or more clusters # cluster on the first TOB detector C. Civinini INFN-Firenze

  35. Conclusions • The 25 ns structured beam has been fully exploited by the CMS tracker community • We collected an enormous amount of good quality data(~220 GB) for: • Detector studies • Electronics behaviour • Physics (p – Pb primary interaction multiplicity) ? • TIB and TOB smoothly ran together in the same DAQ chain • The story doesn’t end here: the system tests are going to continue • e.g. for TIB • Complete layer 3 (4 full strings) • Double sided (layer 1 or 2) • Cooling C. Civinini INFN-Firenze

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