Status of EC-C assembly at Liverpool

C Buttar

EC PAR, Nikhef Nov 04

Nikhef disk cylinder assembly tooling

TPPCs 4x32ch PCBs

Thermal plug

accesswindows

Cooling pipes

LMT trays

Service Handling

Disk insertion tooling

Progress with Diskcylinder tooling

• Shielding foil added to cylinder• Thermal feedthrough prepared and fitted• Cylinder and stub wings assembled onto tooling (July)• 4 disk alignment tools made by Manchester• Disk grabber-design by Nikhef-manufactured by

Sheffield/Lancaster• Disk fixations from Nikhef and Liverpool-delivered• alignment target holders designed (Nikhef) and

manufactured (Lancaster)• Disk insertion, alignment (X,Y), capture+removal

(August) alignment better than 100m• Wheels+jacks added and tooling+cylinder have been

moved in and out of the cold room (Sept)

• Alignment• disk capture DOF mechanism• Disk grabber

Cylinder inside the cold room

Moving intothe cold room

Status of tooling-Oct

• 2nd disk alignment, capture and removal has been performed with D7 populated with services– alignment checked with dummy masses– used interface to disk mini-cylinder– grounding: mini-cylinder and frame grounding– FSI spool+ ground foil handling – work with scaffolding around cylinder

• Work to be done– Thermal cycle of tooling+cylinder in the cold room– Removal and insertion of the beam to be

demonstrated– grabber needs to be improved-stronger springs

Mounting disk onto cylinderfrom mini-cylinderMounted relative to cylinder using pins

FSI spool sittingon mini-cylinder

move FSI spool back onto PPF0using PPF0 location screws

Remove FSI spool and place outsidepatch panel

Ground foils

Service status• LMTs

Testing of UK tapes at Glasgow, first 15 testedDelivery ~100/week, Taiwan to finish production 10/12

• TIsWill be tested as part of LMT-TI harness at Glasgow

• ‘String test’ LV/HVtest cableTPPCTILMTPPF0wiggly tapehybrid/module at Liverpool2 adjacent channels on pre-production TPPC testedFirst 16 TPPCs to be delivered to Liveerpool this week/next week for D9

• FibresLancaster has volunteered to take on reception testingFibres for disk testing (D1) at Liverpool, D9 delivered and tested ok, length issue

• DCS for D9 will be delivered by RB this week• Cooling pipes

Assume no cooling pipes initially and connect direct to disk as for disk testingRetro-fit cooling pipes at Liverpool/CERN when components ready and connect at STFT for testingCooling-replicate disk testing system and connect direct to the disk-or similarParts delivered and assembly underway at Liverpool

TPPC string test

String testTest cable TPPCTILMT

harnessPPF0wiggly tape hybrid

direct to hybrid String test

Cooling HEXsame design as for disktesting

Service handling

• Thermal plug delivered and fitted (Sheffield)

• PPF1 trays for LMTs ready (RAL)

• PPF1 tray holders (Sheffield) Delivered, being sent for anodising• Other parts for LMT handling in progress at (Nikhef+Lancaster)

• Temporary PPF1 for fibres Lancaster have volunteered to make this based on prototype being made at Nikhef At Liverpool we need to ensure we can connect in the cold room—looks good, measurement of fibre length indicated that fibres reach close to window in the thermal plug

Thermal plug and LMT trays+holders

Cooling connectioncaptive !Helicoflex not O-ring

LMT connection• checked connection with pcb by

measuring thermistor•use clip on light and dental mirror to check connections

• problem with some mis-alignments of guides•passed back to disk makers, they will check alignment with pcbs•can be fixed in-situ but to be avoided

Strain relief at aperture

bendy fibres?!

cable clamps (D3-D9 on cylinder)

fibre clamps (D3-D9 on cylinder)

Temporary patch panel (TPPC) and TI connections

Testing during assembly

• Ensure connections from PPF0 on disk to TPP on thermal plug are well made before moving into cold room—limited access!– LMT connections: check temperature through

LV, checks connection at PPF0– Check fibres and LMTs by sending trigger

burst using SCT DAQ(RODDAQ being used to test disk)Aim to do module by module in parallel with service laying

Schedule-ambitious!

• 10/11 Assemble service handling– awaiting final parts

• Week of 15/11+22/11 leak check and test cooling, move into cold room and test with D7– cooling being assembled – waiting for DCS cables (due this week)

• End November ready to install D9 and mount services

Issues

• Cooling and test of disk with services in cold room– cooling being set up for testing

• LMT delivery and making harnesses– delivery of D9 tapes by end this week ? – tape testing at harness preparation at Glasgow

• Problem with infininion connector at PPF0– cannot be fixed in the cylinder

• Experience !

Testing in cold room

• Based on experience with disks• Move into cold room and cable (1d)• Check cabling (1.5d)• Cooling down (1d)• Confirmation tests (5d)• Characterisation (5d)• Warm-up (with I-V) (1d)Total ~15d per disksCan we run cold overnight ?!