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Status of ID sonar developments Greg Hallewell Centre de Physique des Particules de Marseille

Status of ID sonar developments Greg Hallewell Centre de Physique des Particules de Marseille (CNRS/IN2P3). ATLAS ID week, CERN, October 28 th - November 1 st 2013. R . Bates a , M . Battistin b , S . Berry b , J. Berthoud b , A . Bitadze a , P . Bonneau b ,

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Status of ID sonar developments Greg Hallewell Centre de Physique des Particules de Marseille

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  1. Status of ID sonar developments Greg Hallewell Centre de Physique des Particules de Marseille (CNRS/IN2P3) ATLAS ID week, CERN, October 28th - November 1st 2013

  2. R. Batesa,M. Battistinb,S. Berryb,J. Berthoudb, A. Bitadzea,P. Bonneaub, J. Botelho-Direitob, N. Boussonc,G. Boydd,G. Bozzab,E. Da Rivab,C. Degeorgee, C. Deterref,B. DiGirolamob,M. Doubekg,D. Giugnib,J. Godlewskib,G. Hallewellc, S. Katuninh,N. Langevinc,D. Lombardb, M. Mathieuc,S. McMahoni,K. Nagaij, E. Perez-Rodriguezb,D. Robinsonk, C. Rossil,A. Rozanovc,V. Vacekf,M. Vitekf and L. Zwalinskib a SUPA School of Physics and Astronomy, University of Glasgow, G62 7QB, UK b CERN, 1211 Geneva 23, Switzerland c Centre de Physique des Particules de Marseille, Aix-Marseille Université, CNRS/IN2P3, 163 Avenue de Luminy, 13288 Marseille Cedex 09, France d Department of Physics and Astronomy, University of Oklahoma, Norman, OK 73019, USA e Indiana University, Department of Physics, 727 East 3rd St. Bloomington, IN 47405, USA f Deutsches Elektronen-Synchrotron , Notkestraße 85, D-22607 Hamburg, Germany g Czech Technical University in Prague, Department of Applied Physics, Technická 4, 166 07 Prague 6, Czech Republic h B.P. Konstantinov Petersburg Nuclear Physics Institute (PNPI), 188300 St. Petersburg, Russia iRutherford Appleton Laboratory - SFTC,Harwell Oxford, Didcot, OX11 OQX, UK j Department of Physics, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria k Department of Physics and Astronomy, Cavendish Laboratory, J.J. Thompson Avenue, University of Cambridge, CB3 0HE, UK lDepartment of Mechanical Engineering - Thermal Energy and Air Conditioning Division, Università degli Studi di Genova Via All'Opera Pia 15a - 16145  Genova, Italy ATLAS ID week, CERN, October 28th - November 1st 2013

  3. Sonar (speed of sound) measurements used for the analysis of binarygas mixtures of dissimilarmolecularweight, includingC3F8/N2, C3F8/C2F6 & C3F8/air in the ATLAS pixel & SCT cooling system – soonalsoCO2/N2 for the IBL Precisions: (<0.1%)C3F8/N2 ~4.10-5:C3F8/(25%)C2F6 ~3.10-3: C3F8/(010%) air ~ 10-3:(<0.1%)CO2/N2 ~ 5.10-4 (expected) Sound transit times measured in opposing directions in flowing gas provide simultaneous flow measurementin the same instrument ATLAS ID week, CERN, October 28th - November 1st 2013

  4. Custom microcontroller-based electronics sends sound pulses & measures transit time in two opposing directions, along with process gas temperature & pressure Using Polaroid/SensTech model 6000 camera/robotics 50 kHz ultrasonic transducer. May need to go to acoustic frequencies (1-4 kHz) & conventional loudspeakers for gases with high CO2 content ATLAS ID week, CERN, October 28th - November 1st 2013

  5. Environmental N2envelopegasfrom pixel & SCT detectors isaspiratedintosonar tubes for soundvelocityanalysis. (instruments & SCADA computer running PVSS in USA15 gas room) ATLAS ID week, CERN, October 28th - November 1st 2013

  6. Pixel SCT TRT IBL NO P (0 1 barabs) To air extraction system NC Vacuum pump (membrane) To mobile GC To mobile GC To mobile GC Future Acoustic frequency sonar (1-4 kHz) SCT TRT/IBL Pixel P (0 1 barabs) P (0 1 barabs) To air extraction system P (0 1 barabs) To air extraction system To air extraction system Vacuum pump (membrane) Vacuum pump (membrane) Vacuum pump (membrane) ATLAS ID week, CERN, October 28th - November 1st 2013

  7. Valve driver Sonar chassis (sonar tube 1 + analog inputs, temp + press.) Vac pump driver - version 2 Sonar chassis (tube 2- sonar only, no A.I.) Dell Poweredge 1950 on ATLAS general network will soon be replaced by new R610 server on ATCN network (already installed: OS uploaded via ATCN) PVSS projects will soon be migrated onto the new R610 for testing ATLAS ID week, CERN, October 28th - November 1st 2013

  8. Example PVSS-v3.8 Graphical User Interface: one sonar tube + linked temperature sensors ATLAS ID week, CERN, October 28th - November 1st 2013

  9. We have been analyzing pixel N2 environmental gas for C3F8 leaks for more than 18 months ( Feb 2013) Pixels: ~70independent C3F8 evaporativecooling circuits Leaks in certain circuits of « L2 » (barrel: layer 3) ATLAS ID week, CERN, October 28th - November 1st 2013

  10. Resultsfrom long term(> 18 month) studyof pixel N2environmentalgasfor C3F8leaks % concentration of C3F8 in N2 (molar)) ATLAS ID week, CERN, October 28th - November 1st 2013

  11. Identification of cooling circuits with C3F8pleaksduring pixel detector cooling restart: 15 January 2012 (re-confirmedduringshut-down 20 February2013) ATLAS ID week, CERN, October 28th - November 1st 2013

  12. We also analyzed SCT N2 environmental gas for C3F8 leaks for 2 months ( Feb 2013) ATLAS ID week, CERN, October 28th - November 1st 2013

  13. SCT and pixel detector coolingshut-down 20 February 2013. ATLAS ID week, CERN, October 28th - November 1st 2013

  14. Sound velocity measurement uncertainty dc= 0.05ms-1 Total from effects: d(temperature, pressure, distance between transducer membranes, transit time measurement) • Mixture measurement precision dmix = dc /m • m = local gradient of curve (c vs. conc. C2F8 in N2) • (0.05ms-1/12.27ms-1%-1)  0.004% (0≤%C3F8 ≤ 1%)

  15. Analysis of CO2 leaks from IBL staves into N2 atmosphere Membrane: separation of IBL N2atmospherefromthat of the rest of the pixel detector 82nd Sonar Meeting, CERN, October 16th, 2013

  16. Slope = 1.1 ms-1%-1 Mix. resolution for sound vel. measurement uncertainty of 0.05ms-1 0.05% MW CO2 = 44: MW N2 = 28 ATLAS ID week, CERN, October 28th - November 1st 2013

  17. Sonar installations for the New thermosiphon evaporativecoolantcirculator (will replace USA15 C3F8compressors) (Seealsoslides by MicheleBattistin) ATLAS ID week, CERN, October 28th - November 1st 2013

  18. Degassing sonar Sonar UFM 3-4 aspirating sonars SCT, pixel, IBL, TRT(?) : Poweredge 610 handling all sonars, interface to ATLAS FSM and DB

  19. Cable slot 3185 Condenser platform 3178 ATLAS ID week, CERN, October 28th - November 1st 2013

  20. Degassing sonar (now leak-tested for installation) & local electronics Being assembled & tested by Sergey Katunin ATLAS ID week, CERN, October 28th - November 1st 2013

  21. Bldg 3185 Control cables for Thermosiphon condenser & degassing sonar Sonar electronics cabinet mounted on frame Cladding wall Bldg 3178 ATLAS ID week, CERN, October 28th - November 1st 2013

  22. ATLAS ID week, CERN, October 28th - November 1st 2013

  23. Sonar system integration into the ATLAS DCS ATLAS ATCN network ATLAS ATCN network m-controller: Modbus under TCPIP m-controller: Modbus under TCPIP ATLAS ID week, CERN, October 28th - November 1st 2013

  24. High flow UFM now installed in USA15 compressor room Sound transit time diff in opposed Directions at 45º to gas flow  flow rate Gas flow ATLAS ID week, CERN, October 28th - November 1st 2013

  25. Ultrasonic flowmeter in thermosiphon C3F8 vapour return line (400 l/sec) to surface: installed in USA15 Thermosiphon PLC-based control system racks (provide sonar UPS feed) ATCN ethernet spur to switch in T/DAQ room 4-20mA signals For Tup, Tdown, Local sonar electronics to go on wall next to door ATLAS ID week, CERN, October 28th - November 1st 2013

  26. Instrument can also analyze C3F8/C2F6 blend molar ratioif blend operation becomes necessary. Ref: Alex Bitadze PhD thesis (Univ. Glasgow): Evaporation temp. improvement in SCT bistave with varying C2F6/C3F8 blends: (Vertical error bars represent ± 0.3% precision on blend measurement with sonar in a combined flowmeter/analyzer) ATLAS ID week, CERN, October 28th - November 1st 2013

  27. SOME RECENT SONAR REFERENCES (not exhaustive) [1] R. Bates et al, JINST 8 (2013) P02006 [2] R. Bates et al, “A custom on-line ultrasonic gas mixture analyzer with simultaneous flowmetry, developed for the upgraded evaporative cooling system of the ATLAS Silicon Tracker.” Proc. 3rd intl. conference on Advancements in Nuclear Instrumentation, Measurement Methods and Applications, Marseille, June 23-27 2013; to be published in IEEE Trans. Nucl. Science. [3] R Bates et al, JINST 8 (2013) C01002 [4] R. Bates et al, IEEE Trans. Nucl. Sci. 59(2012) 2367 [5] R. Bates et al, “SIMULTANEOUS ON-LINE ULTRASONIC FLOWMETERY AND BINARY GAS MIXTURE ANALYSIS FOR THE ATLAS SILICON TRACKER COOLING CONTROL SYSTEM.” Proc 14th Intl. Conference on Accelerator &  Large Experimental Physics Control Systems, San Francisco, Sept 25-30 2013; to be published in JINST ATLAS ID week, CERN, October 28th - November 1st 2013

  28. Sonar measurements allow continuous real-time analysis of binary gas mixtures (including those formed by leaks) Sonar is being integrated into the ATLS DCS. Precision improves with mol. wt. difference: Sonar has repeatedly identified in-operation leaks in layer 2 of pixel detector at 10-5 level: Used for SCT environmental gas, soon also IBL: Will play a vital role in thermosiphon operation Also for possible C3F8/C2F6 blend operation ATLAS ID week, CERN, October 28th - November 1st 2013

  29. Back-upslides ATLAS ID week, CERN, October 28th - November 1st 2013

  30. WallInstallation(automatedsampling) Original tube positions respected in new panel (old labels still relevant) 82nd Sonar Meeting, CERN, October 16th, 2013

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