1 / 40

DØ Fiber Tracker Installation and Commissioning

DØ Fiber Tracker Installation and Commissioning. Don Lincoln DØ Collaboration Fermilab Director’s Review December 7, 1999. Fiber Tracker Overview. stereo. axial. stereo. axial. Scint Fibers 830m m Æ , multiclad 1.6-2.5m active length 10m clear waveguide to photodetector

tom
Download Presentation

DØ Fiber Tracker Installation and Commissioning

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. DØ Fiber TrackerInstallation and Commissioning Don Lincoln DØ Collaboration Fermilab Director’s Review December 7, 1999

  2. Fiber Tracker Overview stereo axial stereo axial • Scint Fibers • 830mm Æ, multiclad • 1.6-2.5m active length • 10m clear waveguide to photodetector • rad hard (100 krad) (10yr @ 20cm @1032) • Fiber Ribbons • 8 axial doublets • 8 stereo doublets (3o pitch) • Readout • 77,000 channels • VLPC readout • run at low temp (9 K) • fast pickoff for trigger • SVXII readout side view end view

  3. Prototype Commissioning • At Lab 3, a prototype cosmic ray test has been underway for about a year. • To date: • Tested two cylinders (3A & 3B) • Lightguides and connectors • Prototype cassettes (final design) • Cryogenics and control • Prototype analog electronics boards (‘stereo’ boards, with SVX-II readout) • Standalone sequencer • DAQ • Soon • Final sequencers • VRB readout • Eventually • Final analog board (AFE) shakedown

  4. Cosmic Ray Test of CFT Proportional Drift Tubes v v v v v v 2(3 deg) Stereo Ribbons x x x x x x 4 Axial Ribbons 110 cm Forward and Central Preshower Modules 19.05 cm 88 cm 4096 VLPC pixels 4 Cassettes Cryostat 127 cm Jadzia Warchol Notre Dame 110 cm 19.05 cm Light Guides

  5. DAQ Jadzia Warchol Notre Dame Stan Krzywdzinski FE board on Cassette CAMAC (TDCs for drift tubes) VME CRATE Stand Alone Sequencers XVME 200 (GENERATES INTERRUPT) MVME 162 Motorola 68k CBD 8210 Ethernet link DART event in lab3sgi1

  6. Prototype Commissioning Jadzia Warchol Volker Buescher Juan Estrada Stefan Grunendahl • Cosmic Ray Test • Installed two separate cylinders (3A/3B) • Tested lightguides • Tested prototype electronics • Tested DAQ

  7. Pre-installation Commisisoning • At Lab 3, all components of the CFT will be tested. • Fiber positions are surveyed. • During nesting, each cylinder is aligned to the others on CMM. • CFT arrives at DAB as a single-piece unit. • Each VLPC cassette is qualified at Lab 3 • Each lightguide is tested at ND or IU prior to shipping.

  8. Necessary Components • Installation • Support fixtures • Installation fixtures • Fiber bundles • Installation and Commission • Cassettes • Cryostat and cryogenics plant • Electronics (readout, temperature and voltage control, LEDs) • Gas system • DA system • Tracking code • Examines, etc. • Pre-Installation and Pre-Commissioning

  9. Cryogenics Russ Rucinski Bob Barger • Two independent cryostats • Most material either in house or on order. • Fabrication 11/4/99 - 4/7/00 • Installation 4/10/00 - 4/28/00 • Shakedown 4/28/00 - 6/12/00 • Prototype installed and running at Lab 3 7/15/97. Cryostat positions, relative to DØ (Nothing to Scale)

  10. Lab 3 VLPC Cryostat Russ Rucinski Bob Barger Test Cryostat - holds 4, full-size VLPC cassettes. Provided input to final cryo design Fully Tested Meets specification

  11. Cryostat

  12. Lightguide Production Notre Dame Indiana University • Magnitude of the problem • CPS 30 bundles of 256 fibers • FPS 64 bundles of 256 fibers • CFT 300 bundles of 256 fibers, with each cylinder having a different connector • 106 m of fiber (500 kg) • 100 CFT bundles of unconnectorized fiber, pulled to correct length • Many CPS bundles under construction. • 50% of waveguides 3/1 • 100% of waveguides 7/6

  13. Fiber Routing I VLPC CRYOSTAT FORWARD DETECTORS ECS INSTALLATION FORWARD PRE-SHOWER SEPT 98 ICD LEVEL ZERO WAVE GUIDE FIBER BUNDLE INSTALLATION CFW CFE TRACKER CENTER CABLING SLOT BEAM WAVE GUIDE PATCH PANEL VLPC CASSETTE VLPC CASSETTE VLPC CRYOSTAT VLPC CRYOSTAT SILICON TRACKER POWER SUPPLIES 2-FRONT • Waveguide bundles consist of 256 fibers in light-tight nylon sheath • Curved connector (256 ch.) at detector • 2 128 ch. Connector at cassette end

  14. Fiber Routing II

  15. Fiber Routing III

  16. Fiber Routing IV

  17. Fiber Routing V

  18. Fiber Routing VI

  19. Fiber Routing VII

  20. Fiber Routing VIII

  21. Waveguide Installation Manpower • Waveguide Installation 5/11/00 Duration 8 weeks • Physicists: Wayne 25% ND • Shepard 25% ND • PostDoc 100% ND • 1 student 100% ND • Ray 50% • Gutierrez 50% • Engineer: Cease 50% • Techs: (All Lab 3) • Butler 100% • Kubinski " • Spartana " • Garramone " • Tolian " • C. Davis " • Flores "

  22. Cassettes George Ginther Volker Buescher Greg Davis Dan Olis • VLPC’s and most mechanical components in house • Four prototype cassettes have been built • Production manufacture has begun • 50% completion 5/3/00 • 100% completion 9/13/00 • 2.5 cassettes/week

  23. Cassette Engineering Drawing Constructed Cassette

  24. Cassette Installation Manpower • Cassette Installation - First 50 4/26/00 Duration: 5 weeks • Physicists: All University of Rochester • Ginther 25% • Buescher 50% • G. Davis 50% • J. Estrada 50% • F. Canelli 50% • Engineer: • Anderson 20% • Fogelsong 25% • Techs: • B. Davis 100% Lab 3 • Barger 20% • Electronics 50% From MJ

  25. Cassette Installation Manpower • Cassette Installation - Last 50 8/15/00 Duration: 5 weeks • Physicists: All University of Rochester • Ginther 25% • Buescher 50% • G. Davis 50% • J. Estrada 50% • F. Canelli 50% • Engineer: • Anderson 20% • Fogelsong 25% • Techs: • B. Davis 100% Lab 3 • Barger 20% • Electronics 50% From MJ

  26. Electronics Status Marvin Johnson and crew • In House: prototype stereo boards (used in Lab3 CRT) • AFE ordered 3/8/00 • AFE 10 boards available 5/3/00 • AFE all available 8/11/00 • DFE ordered 12/15/99 • DFE 10 boards available 5/10/99 • DFE all available 9/1/00 • Mixer boards ordered 5/31/00 • Mixer boards available 7/27/00 • First crate operational 5/17/00

  27. Tracking Test Kin Yip Norm Graf • Current Code can track single muons as long as impact parameter is not too big. • Run I algorithms allowed larger impact parameter

  28. EXAMINE/Data Integrity Andrei Mayorov Indiana University • Code exists and is ready for data

  29. Cosmic Ray Manpower • Cosmic Ray Run 7/15/00 Duration: 8 w • Physicists: • Warchol 100% • ND PostDoc 100% • Mayorov 100% • Lincoln 25% • ND Students 100% • Techs: • Electronics 25% From MJ

  30. CFT Timeline 2000 2001 J F M A M J J A S O N D J F 4/27 Ribbon Mounting 5/11 Assembly Complete Roll in 2/1 3/13 4/24 9/25 10/30 9/18 Beam-ready Support Design/ Fabricate 5/12 5/25 7/24 FT install/hookup SMT install/ hookup 50% 3/1 7/6 Waveguide production 4/7 Cryo Fabrication 4/10 4/28 6/12 Cryo Install/Shakedown 50% 5/3 9/13 Cassette Assembly 8/01 10/4 5/17 50% Cassettes Installed 5/17 9/5 10/30 1st CFT crate operational Full System Test 3/8 4/7 Full DAQ Startup 6/12 10/30 Commission CFT

  31. Technician Manpower Fiber Tracker Tech Effort FNAL 25 20 15 All FTEs Install. 10 5 0 Jul-99 Jul-00 Jan-99 Jan-00 Jan-01 Nov-99 Nov-00 Mar-99 Mar-00 Sep-99 Sep-00 May-99 May-00 Fiber Tracker Note about the legend: “All” - refers to effort assigned to all tasks in the relevant schedule “Install.” - refers to effort assigned to a subset of those tasks flagged as installation tasks Tech effort is sum of MTF112+ETF112

  32. Summary • All components will be pre-tested and pre-commissioned, prior to arrival at DAB • Lightguide map is complete. • Manpower lists here are adequate for installation • Will need close cooperation with electronics group for cosmic ray commissioning

  33. Ribbons

  34. Ribbons s = 18.4 mm Ave. = 0.3 mm

  35. Ribbons - Optical Connectors • Have now received »50% of curved connectors • Material - Torlon • Optical coupling efficiency > 90%

  36. Mechanical SupportsWBS 1.1.2.7 Cylinder 8 50 meas. Along L 3.5 mil RMS 1 division = 6.25 mil

  37. Ribbon Mounting G. Gutierrez Ron Ray John Krider

  38. Support Fixtures • Two (three?) fixtures at 3 & 9 o’clock (possibly one at 6) • Aluminum plates • Connect to the FT between layers 6-8 • Design 2/1/00 - 3/13/00 • Fabricate 3/14/00 - 4/24/00 • Kurt Krempetz

  39. Installation Fixturing Solenoid Rollers CFT • Technique same as inserting solenoid • Use same (modified) fixturing • Design/fabricate installation fixture 2/18/00 - 4/14/00

  40. CFT Install Manpower • CFT moves to DØ 5/4/00 Duration: 1 week • Fnal Surveyors 100% • Krempetz 50% • D. Butler 100%

More Related