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Engineering and Design Collaboration Status Update

Detailed overview of engineering design progress and remaining tasks since January 2008 collaboration meeting at JLAB. Includes descriptions of work done, responsible teams, unresolved issues, and future goals.

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Engineering and Design Collaboration Status Update

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  1. Engineering and Design What has been done since the las collaboration meeting and what still needs to be done?

  2. January 2008 Yes, It is already January!

  3. JLAB Engineering Manpower • 2.5 Mechanical Engineers – W. Crahen, (Solenoid) G. Biallas (50%) T. Whitlatch • 3.5 Mechanical Designers – C. Hutton, J. Lagner (contract) V. Razmyslovich TBD (for solenoid 50%) • Possibly additional contract designers to help with drawing crunch in late spring

  4. Who is doing the Engineering Design? • Solenoid – JLAB – G. Biallas/TBD • Target – JLAB – M. Seely / TBD • Start Counter –FIU/JLAB W. Boeglin/TBD • CDC – CMU/JLAB – C. Meyer/V. Razmyslovich • BCAL – Regina/JLAB – Z. Papandreou/G. Lolos/T. Whitlatch/J. Lagner • FDC – JLAB – D. Carman/S. Taylor/B. Kross/B. Crahen/C. Hutton

  5. Who is doing the Engineering Design? • TOF – Indiana U/JLAB – M. Shepherd/B. Zihlmann/TBD • FCAL - Indiana U/JLAB – M. Shepherd/B. Zihlmann/TBD • Tagger – CUA/Glasgow/JLAB/TBD – F. Klein/G. Yang/C. Hutton/TBD • Hodoscope – CUA/UConn – F. Klein/R. Jones

  6. Who is doing the Engineering Design? • Collimator – UConn/CUA/JLAB – R. Jones/F. Klein/TBD • Pair Spectrometer – UConn/TBD – R. Jones • Radiator – Glasgow/JLAB – G. Yang/TBD • Infrastructure – JLAB – T. Whitlatch/C. Hutton

  7. What has been done since Oct. Collaboration meeting? • BCAL assy progress • ¼ scale model fabrication underway (FSU) • Assy procedure progressing • FCAL testing • Small array fab and heat test (Indiana) • FDC progress • Cooling system defined • Progress on support system • Tagger Interface defined

  8. Gluex Detector in Hall D

  9. Gluex Section Cut

  10. BCAL Installation

  11. BCAL support in Solenoid

  12. BCAL Wedge Assy

  13. FDC Assy

  14. Cooling of FDC Preamp Card

  15. Tagger Interface

  16. What still needs to be done by this summer? • 100% Design BCAL,FCAL,CDC, FDC • 90% Solenoid, diamond radiator • 80% UPV, TOF, Hodoscope • 70% Beamline, Tagger, Platforms • 40% Start Counter, Target

  17. FCAL Matters to be Resolved • What Lead/Glass blocks to be used near center (Rad Hard)? • What cell Wall configuration will be used? • Is cooling required for PMT electronics? • Will curing of lead/glass be required? • What will be the calibration system? • Magnetic Shielding

  18. BCAL Matters to be Resolved • Fiber Specification • Lead Sheet Specification • PM configuration (SiPm, Burle, Planacon) • Heat Loads from SiPm’s • Installation procedure continue

  19. CDC Matters to be resolved • Final straw tube configuration • Electronics heat load • Electronics configuration and feedthru • Gas mixture and flow paths • Correct 3D model for new length/config • Support rail design

  20. FDC Matters to be resolved • Final Package configuration • Support rail design

  21. TOF Matters to be Resolved • Final configuration • Light collection • Magnetic shielding

  22. Target Matters to resolve • Specification • Position • Cooling of liquid H • Options for solid, nuclear, He?

  23. Tagger Matters to Resolve • Contract for 100% design –Jan 31st bids due • Hodoscope Design

  24. BeamLine Matters • Radiator/Goniometer – diamond fabrication, how to support diamond • Collimator/shielding – more definition • Pair spectromenter – who is to define specifications and do design?

  25. Solenoid Matters to be Resolved • Cryogenics design • Coil shield leaks • Shorts (coil 1)

  26. Infrastructure Matters • Final Rack Configuration • Final Cable runs • Final Design of platforms

  27. Other matters • Magnetic field calcs updated • Calorimeter Transition Region? • DIRC?

  28. ALIGNMENT CONSIDERATIONS • Network of Fiducials around the Hall Tie into the Main Accelerator (within mms). • Each Component will have own Fiducials that are visible on Installation (30 -100 micron accuracy) • Optical Tracker to be used throughout to determine component position better than 100 microns relative to Hall network.

  29. ENVIRONMENTAL CONTROL • Most Heat Produced by ASICs (<2KW) • ASICs Cooled by Water (FDC), and by Dry Air (CDC) • Dry Air Pumped into Center of FDC to keep Humidity down. (Hall B monitored to 40-45%) • Dry air pumped onto ends of BCAL for cooling of SiPM’s? TBD

  30. When?

  31. How do we get there from here? • Assume Final Design Specs March 1 for FCAL, BCAL, FDC and CDC • Assume Final Design Specs May 1 for remainder of systems • Continue Weekly phone meetings on details for each detector • Use Action Item Tracker • Hard work! • Communication!!!!!!

  32. Remember to use Mailing lists! • https://mis.jlab.org/mis/apps/cis/ulsts/ListManagerWAction.cfm?web_page_title=MAJORDOMO-LIST-MANAGER&app_id=163

  33. What is a Final Design Review? • Verification that the design meets requirements • Analysis performed to validate design • Verify manufacturing and installation is achievable • Verify procurement issues resolved • Verify drawings, specifications and procedures are complete (to applicable level) • Verify test plans have been established • Ensure recommendations incorporated from previous reviews.

  34. What is 100% Design (minimum) • Documentation good enough to ensure the proper procurements are being placed. • This means signed drawings, specifications and fabrication procedures

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