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V.Parma, CERN, TE-MSC

Machine and cryostat integration: first thoughts on issues for 11T+collimator assembly in the DS zones. V.Parma, CERN, TE-MSC. CERN , 12 June 2013. Dispersion suppressor zones, our playing ground.

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V.Parma, CERN, TE-MSC

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  1. Machine and cryostat integration:first thoughts on issues for 11T+collimator assembly in the DS zones V.Parma, CERN, TE-MSC CERN, 12 June 2013

  2. Dispersion suppressor zones, our playing ground P1, after LS1: bus-bars QF and QD stop after Q11  easier integration in QTC. Much easier if done in LS3 (DFB on surface) P5, same as P1 P7, similar to P3 CERN, 11 October 2011

  3. Relevant machine Integration issues In case trims needed: • Spare 600 A SC wires (3 pairs of spools) • But no spare current leads in DFBs (spares only in IR 4,6) • Modify to add new current leads?  complex (?) in-situ work • Use an existing unused circuit?  to be checked IR 1 & 5: • After LS1, QF and QD bus-bars stop after Q11: easier busbars routing through 11T+Collimator assy IR 7: • If 11T+collimator during LS2 can be coupled to displacement of DFB+SC link (R2E): easier integration of additional 600 A leads

  4. M1, M2 M3

  5. Longitudinal space break-down

  6. Sketch of a possible layout 15’660 (IC to IC plane) ~2’380 ~6’214 (LCM) ~6’214 (LCM) MCS MCDO 250 250 ~300* ~142 Splicesdoneatassembly Fixed support Sliding support B-Bar Expansion lyra ~300* ~142 B-Bar Fixed point External jack * Experiencefrom QTC bus-bars routing

  7. Timeline for LS2 11 T + collimators assy ready for installation 1st 11T proto 2-in-1 (c.f.r. M.Karrpinen’s talk) 11 T + collimators assy testing 11 T + collimators cryostat assembly Cryostat procurement 11 T + collimators cryostat Engineering & Design Preliminary study Latest start of Engineering & Detailed design

  8. CM/cryostat integration work Preliminary study (up to end 2013) • 3-D modeling with existing designs of components (see my table, 1st column) • Study CM-specific bus bars integration inside end caps and along magnet: • routing of M1,M2 (no need for Pt1,5!) and lyras • M3 routing, connections, diode and connections, lyras • Study for MQ-dipole-dipole and dipole-dipole-MQ slots • Study inter CMs busbars routing line and connections • Study CMs cryostat assembly and tooling  Assess integration complexity and identify areas for length optimisation, needs for specific development, plan engineering and design effort from 2014 onwards

  9. Cryostat specific issues Start from and possibly preserve (as far as possible), from LHC and QTC designs: • Vacuum vessel external envelope: • impact on tunnel passage, and transport • Thermal shield bottom tray design (see QTC design) • M1-3 bus bars routing lines • Standard interconnects  we need to involve an LHC experienced designer (obvious names in mind)

  10. Spare slides

  11. QTC assydrwg

  12. DFBA in Pt 2 DFBAs at P2 are also feeding Q6

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