1. Parts exchange for HL-LHC AUP Q1&Q3
Cold mass parts expected from CERN as discussed by Paolo in NAPA:
316LN plates
End covers
Cold bore tube (TE-VSC)
‪Heat exchanger tube‬‬‬‬‬‬‬‬‬‬‬
‪NbTi cables
18kA busbars‬‬‬‬‬‬‬‬‬‬‬
‪Temperature sensors (TE-CRG)
N-lines‬‬‬‬‬‬‬‬ (TBC)
Instrumentation wires (TBC)
Other components?
Interconnection Bellows
Flexible hose
Cryo Heaters (TE-CRG)
Fibre
Feedthroughs
Supports

2. Design Procurement Remarks
316LN plates
Q1&Q3 11m x 1.4m x 8mm 
Q2A&B 10m x 1.4m x 8mm 
Drawing to be done
Specification (Tech. Sheet 700, EDMS ) 
MS 4313 
IT to be launched on week 30
3 qualified candidates:
(Industeel, Boehler and ThyssenKrupp)
Order for 12 plates (10m) DAI for MQXFB magnet prototype and pre-series
Order for 8 shells shaping and machining (10m) DAI for MQXFB magnet prototype and pre-series
Plates for US collaboration (11m) are placed as an option in the MS
Shells for Q1 &Q3 to be to be shaped and machined in the US
End covers
On going
FEM calculations on going
Final interconnection design to be finished and approved
Most probably forged but casting and powder metallurgy might be considered
Update of LHC IT-2500
End covers for the MQXFB magnet prototype made out of cold formed heads equipped with welded nozzles
Design by the end of Nov. 2017
Launch proc. process Jan. 2018
‪Heat exchanger tube
Done 
Update of LHC IT-2556
Soldering and EB welding at CERN
One single standard LHC heat exchanger tube (Ø54/58) will be used MQXFB magnet prototype
Design by the end of Aug. 2017
Launch proc. process Oct. 2018
NbTi cables
48m required per cold mass
Requirements passed to SCD section by Ezio
Busbar stabilisation obtained by doubling the cable section
Interfaces for the interconnections still have to de designed and developed

3. Design Procurement Remarks
N-lines‬‬‬‬‬‬‬‬
On going
Final interconnection design to be finished and approved
Update of LHC IT-2859
MB spare tubes could be used for the first assemblies
Design by the end of Nov. 2017
Launch proc. process Jan. 2018
Standard 304L or 316L should be used  Ø50/53 might be replaced by Ø50/54
Instrumentation wires
Quantity and location to be define
Today only one suppler: AXON
see (radiation hardness)
On the shelve references might be order directly to Axon’ Cable Inc
Cold bore tube
(TE-VSC)
Done 
Drawing done, length to be adjusted according to the needs
Specification
MS 
IT to be launched in Oct 2017
1 qualified candidate and 2 potential suppliers
Cold bore tube for MQXFB magnet prototype is already at CERN
Temperature sensors
(TE-CRG)
Location in the cold mass to be define with CRG, could be screwed to the Aluminium shell
Cover Flange
(if local instrumentation feedthroughs are located on the vacuum vessel)
Will start after instrumentation scheme ha been agreed
Closely linked to the instrumentation feed box (IFS) design