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MTD Tray Construction at UT

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

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MTD Tray Construction at UT

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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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