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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. - PowerPoint PPT Presentation
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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
CERN, 11 October 2011
Dispersion suppressor zones, our playing groundP1, 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
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 assyIR 7:• If 11T+collimator during LS2 can be coupled to displacement of DFB+SC link
(R2E): easier integration of additional 600 A leads
4/25
M1, M2
M3
5/25
Longitudinal space break-down
15’660 (IC to IC plane)
250
~6’214 (LCM)
250
~6’214 (LCM)
Sketch of a possible layout
~300*~142 ~142 ~300*
MCSMCDO
* Experience from QTC bus-bars routing
~2’380
Splices done at assembly
B-Bar Expansion lyra
B-Bar Fixed point
Fixed support
Sliding support
External jack
Timeline for LS2
11 T + collimators assy ready for installation
11 T + collimators assy testing
11 T + collimators cryostat assembly
Cryostat procurement
11 T + collimators cryostat Engineering & Design
Latest start of Engineering & Detailed designPreliminary study
1st 11T proto 2-in-1 (c.f.r. M.Karrpinen’s talk)
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
9/25
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)
10/25
Spare slides
11/25
QTC assy drwg
DFBA in Pt 2
DFBAs at P2 are also feeding Q6