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MTD Tray Construction Overview at UT: Process and Progress Report

Learn about the construction process of MTD trays at UT, detailing fabrication and assembly steps, current status, and future plans. Includes information on personnel, machine shops, and testing procedures.

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MTD Tray Construction Overview at UT: Process and Progress Report

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  1. MTD Tray Construction at UT J. Schambach, G.W. Hoffmann University of Texas Beijing, April 2012

  2. Overview • A total of 130 MTD trays will be produced at UT • 118 will be installed in STAR by Run 15 • 13 trays currently installed on 3 backlegs • 14 trays are currently constructed and ready to ship • 64 trays should be ready to ship by Aug 2012 (plan to build 70)

  3. Schematic of an MTD Tray

  4. Personel at UT Machine Shop & Electronics Shop Allan Schroeder - Supervisor

  5. Steps in Tray Fabrication & Assembly (1) • Order material for shop work • Order tray tops from Oaks

  6. Shop fabricates tray parts (machining & welding)

  7. Frames

  8. Machine holes and slots on welded frame

  9. Weld top plate to frame

  10. Completed frames

  11. Steps in tray assembly (2) • Move tray frames to lab & clean

  12. Use DC730 sealant on PEM studs • Use DC730 sealant on inside top tray perimeter • Install gas feed-thrus and seal with DC730

  13. Install HV feed-thrus and seal with DC730 • Mount electronics feed-thru board & seal with DC 730

  14. Steps in tray assembly (3) • Check received MRPCs

  15. Steps in tray assembly (4) • Measure MRPC thickness & fabricate delrin spacers • Install spacers

  16. Steps in tray assembly (5) • Fold pigtails, secure • Secure mounting fixtures • Place MRPC on fixtures • Plugin pigtails

  17. Shim MRPC with delrin blocks & shims • Solder HV wires & seal • Put on bottom & seal • Leak test w/ Magnehelic

  18. Steps in tray assembly (6) • Purge tray with R134A • Install electronics • Noise tests • Timing tests with cosmic rays (future)

  19. MTD Electronics

  20. Noise Tests

  21. UT Database (1) http://www.rhip.utexas.edu/drupal/TOF

  22. UT Database (2)

  23. The End

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