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LHC IRQ Cryostat Interim Design Review March 13, 2000 T. Page - Fermilab

LHC IRQ Cryostat Interim Design Review March 13, 2000 T. Page - Fermilab. Topics. MCBX Corrector Mounting Q2A / Q2B Weld Test Interconnect Design. MCBX Corrector Mounting. Cantilever corrector off of Q2B end plate. Four (4) mounting bolts.

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LHC IRQ Cryostat Interim Design Review March 13, 2000 T. Page - Fermilab

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  1. LHC IRQ Cryostat Interim Design ReviewMarch 13, 2000T. Page - Fermilab

  2. Topics • MCBX Corrector Mounting • Q2A / Q2B Weld Test • Interconnect Design T. Page

  3. MCBX Corrector Mounting • Cantilever corrector off of Q2B end plate. • Four (4) mounting bolts. • 20 mm spacer between end plate and corrector for flow. T. Page

  4. MCBX Corrector MountingMounting Ring T. Page

  5. MCBX Corrector MountingExploded View T. Page

  6. MCBX Corrector MountingANSYS Analysis • Determine the deflection due to it’s own weight. • Modeled just the 15mm thick outer aluminum cylinder. • Simulated weight = 1105 lbs. (500 kg). • Gravity load. • Fixed the end plate around the perimeter. • Specifications from IR Quad Alignment Table: • Corrector Displacement 500 m [.0197 in] • Corrector Roll 5 mrad T. Page

  7. MCBX Corrector MountingANSYS Results - Deflection (inches) T. Page

  8. MCBX Corrector MountingANSYS Results - Stress in Cylinder (psi) T. Page

  9. MCBX Corrector MountingStatus • Initial design complete for MCBX to Q2B mounting. • Mounting ring design discussed with CERN and efforts are underway to integrate the ring into the MCBX design. • Same concept is proposed for mounting correctors to Q1 and Q3. • Q1 Lead End • Q3 Lead End • Q3 Non-Lead End • Awaiting more information on the KEK end plate design. Possible incompatibility with floating end plate design. T. Page

  10. Q2A / Q2B Weld Test • Magnet Q2 consists of two cold masses that will be joined together to form one magnet. • Cold mass alignment issues • Magnetic Performance • Beam tube insertion • The “Weld Test” is an experiment to test the welded connection between cold masses Q2A and Q2B. T. Page

  11. Q2A / Q2B Weld Test T. Page

  12. Q2A / Q2B Weld TestInterconnect Cross Section T. Page

  13. Q2A / Q2B Weld TestInterconnect Section T. Page

  14. Q2A / Q2B Weld TestProcedure • Clamp cold masses in place. • Shoot position of cold masses. • Weld together with interconnect skin. • Unclamp cold masses. • Shoot position. • Interested in final position relative to initial position. • Use bullet strain gauges to detect the deformation of the end plate. T. Page

  15. Q2A / Q2B Weld TestFixture (longitudinal view) T. Page

  16. Q2A / Q2B Weld TestFixture T. Page

  17. Q2A / Q2B Weld Test Fixture (cross section) T. Page

  18. Q2A / Q2B Weld TestFixture T. Page

  19. Q2A / Q2B Weld TestStatus • Alignment targets are being fabricated. • Cold masses are being prepared for the test. • Weld fixture is in the process of being mounted to the assembly table. • Test is scheduled for April. T. Page

  20. Interconnect Design • Three (3) Interconnects in the triplet. • Q1 to Q2 • Q2 to Q3 • Q3 to DFBX • Interconnect Kits • Interconnect Joints T. Page

  21. Interconnect Design T. Page

  22. Interconnect Design T. Page

  23. Interconnect DesignKit • Not shown: • Absorber • Heat shields • MLI (insulation) • Outer vacuum bellows • Weld rings T. Page

  24. Interconnect DesignJoint (clamped joint shown) T. Page

  25. Interconnect DesignClamped Joint T. Page

  26. Interconnect DesignPurchased Clamp T. Page

  27. Interconnect DesignWelded Joint T. Page

  28. Interconnect DesignStatus • All bellows are complete and drawings are being reviewed. • Outer vacuum bellows needs to be designed. • Interconnect shields need to be designed. T. Page

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