Service channels between Tracker and PP1

TK-PP1 Cable Channel Review 14 September 2007, Antti Onnela, CERN

• Installation order and Component status• Mock-up plans

Summary of installation order and component statusInstallation order per PP1

Component Status and remaining preparations

1 Cable channels All channel pieces available at CERN (32 + 2 spares of each type). Channel 1-2: • HCAL attachments and fiber supports welded and ready. • Copper plate attachment screws being prepared (drilling + welding). Cutting of channel 1 tip edges to be done. • Edges to be taped.Channel 3: • Fiber supports made, currently being welded. • Cooling pipe support design ready, to be produced, and attachments to be made in channel 3. • Passage slots for ECAL optocables need to be cut bigger. • Edges to be taped.Channels 4 and 5: • Edges taped. READY FOR INSTALLATION.Channel covers: • All pieces available. • Channel 1, 3, 5 covers need shortening / bending.Other: • All screws and washers available, channel 1-2 modified screws are ready.• Shims for channel 1-2 ready.• Aluminum tape being procured.

Note on the installation order:Installation of cable channels + water cooling much simpler and safer if done before Tracker installation.

But bottle-neck and uncertainty: When will ECAL + HCAL allow installation of TK channels?

Summary of installation order and component status

Installation order per PP1

Component Status and remaining preparations

2 Water cooling circuit Preparations (Meyrin site):• 10 mm pipe material available at CERN.• Copper plates produced.• Assembly jig ready.• First assembly starting “now”. Main challenge: Soldering between copper pipe and plates. • Estimated production rate (2 pers.): 2 units per day, ~1 month for all.Installation (Point 5):• Transport and handling tools still to be developed and made.• For installing need good access to cable channel and PP1 (important!).• Pipe connections in batches. Feeding pipes must be emptied of water!• Use normal soldered capillary fittings, 2 per PP1. Fitting pieces ready.• Soldering equipment ready.• Leak tests to be done with pressure water? Can test only in groups.

Summary of installation order and component status

Installation order per PP1

Component Status and remaining preparations

3 Temp + humidity sensors

• Sensors and cable material ordered. • Sensor protections being designed, and need to be produced.• Cabling of the sensors to be done.• Installation in channels simple and fast (1-2 days, speed dictated by access). • PP1 connectors and connectorisation • How is the testing done?

4 Cooling pipes + leak test(Includes special pipes from PP1 to TK end)

• 3D-design ready, except for last specials (pixel + thermal screen). • 2D-drawings made for TEC pipes, all others made from 3D-coordinates.• 3D-coordinates ready for 75% of Barrel and TEC pipes.• Order placed to pipe bending company. • 14 pre-production pipes (one PP1) should be available by 20 September.• Pieces for ceramic PP1 fittings received. Vacuum-brazing done for first 50 connectors. Production speed 50 connectors per week (9 weeks to finish the production)• Argon leak testers (2) received, and currently under testing with prototypes.• Argon battery to be bought and installed in UXC.• Argon feed-lines and valves to be installed to reach the cooling manifolds at balconies.

5* Barrel optoribbons • Optoribbon supports made + installed on TK.• Optoribbons regrouped and coiled on the supports. • Assembly help tooling being developed and tested on mock-up.• READY FOR INSTALLATION.

* After removal of the nose cone the barrel optoribbon installation can be done in parallel with pipe and barrel cable installation.

Summary of installation order and component status

Installation order per PP1

Component Status and remaining preparations

6 Pipe insulation • Armaflex AF approved in June by CERN safety. • All material available for PP1’s and TK ends. Material for cable channel to be ordered.• Insulation in PP1 Y-pieces: all standards done, some specials remaining.

7 PP1 heating cable • Cable roll and end plugs received at CERN. • Cutting and connectorisation to be done. Connector choice to be made!• Support clamps to be ordered.

8 Barrel MS & Ctrl –cables • Barrel cables labeled with PP1 connector names and bundled by ½-channels on nose cones. • READY FOR INSTALLATION.

9 TEC MS & Ctrl –cables • Cables in production.

10 TEC Optoribbons • Reference point (channel 1-2 junction) marked on TEC ribbons. • TEC optoribbons regrouped and coiled in the boxes at bulkhead.• READY FOR INSTALLATION.

11 Other:Short pipe sections from TK end to PP0; Heating wires and cables in special sectors; Bulkhead covers; Proto Pixel; Beam-pipe supports

Cabling mock-up plans

Step Task When?

1 Dismounting of present setupRemove cables and cooling pipes from both ½ channels.

3rd week of September

2 Test installation of water cooling (2nd option: this is done directly at CMS)Replace channel pieces where needed, to allow attachment of water cooling.Install water cooling set.Install temp sensors in the channel and PP1

4th week of September

3 Test with pre-production standard pipesInstall pipesUse final type of pipe supports (to be made)Install insulationInstall cables (all available)

End of September

4A Test with special channel pipes (one ½ channel)Install pipes in one ½ channelInstall insulationPipe supports in the channel and at PP1 ?Thermal tests?

October

4B Test with special channel cables (one ½ channel)Install cables in the other ½ channel (enough of cables available?)Cable connections at PP1 ?

October

Installation steps 1: Cable channels + 2: Water cooling

STEP 2:

Install 10 mm water cooling pipe, one loop around channels “A” and “C”with its copper cooling plates (not shown here)

Copper plates attached to channel pieces with screwsBraze connections in PP1and leak test water circuit

STEP 1:

Install cable channel, made of 5 sections (sections 1 and 2 are one unit)

All attached to HCAL with screws

Section 3

Section 4

Section 5

Section 1

Section 2

Tracker

PP1

Installation step 3: Temperature and humidity sensors

“Min-max against ECAL”:

1 sensor at far corner away from water cooling

1 sensor next to water cooling

Per PP1 sector the sensors are only in one ½ channel

In top and bottom sectors the sensors are in the special ½ channels

Route sensor wires along 10 mm cooling pipe up to connector in PP1

Installation step 3: Temperature and humidity sensors

Wires from ECAL area run along the 10 mm water pipes up to the connector (Note: Per channel only “A” or “C” side, never both)

D-SUB connector(with humidity sensor)and pre-installed cable to racks

“Hot at cable entry”:

Tight packing of cables entering PP1

“Cold against ribbons”:

On the inside wall below multi-ribbon cables

Total amount of sensors per channel:2 temp sensors at ECAL + 2 in PP11 humidity sensor in PP1

Installation step 4: Pipes1. Install male Lancasher fitting + first

bend piece

2. Measure the correct length of the copper pipe end

3. Remove Lancasher fitting, cut the pipe and solder them together

4. Install the pipe definitively

5. Attach the pipe to the temporary mid-support (subsequent pipes attached to previous ones)

6. Cut the pipe to correct length

7. Solder the pipe with ceramic fitting

8. Clamp the pipe with support block (every 2 pipes)

9. Leak test with Argon (every 2 pipes)

Installation step 5: Barrel optoribbons (after removal of nose cone)

Ribbons have been pre-bundled in TIF to match the channel shapes

Installation step 6: Pipe insulation, from TK to mid-support2 layers of 9 mm Armaflex AF insulation, with joining tape

In channels 1 and 2 must reduce insulation to allow space of cables. Where possible use 3 mm tape in addition

Insulation of individual pipes at TK end is still to be studied:

3 mm tape?

Tubular insulation?

Installation step 6: Pipe insulation at mid-support

Mid-path support with this element.

During pipe installation use temporary support

This support shall be slightly closer to optoribbons, to provide space for cables next to water pipe.

This support shall also be a bit further away from the pipe bend, to ease insulation joint.

Installation step 6: Pipe insulation from mid-support to PP1

From mid-supports to PP1 use 18 mm insulation or 2 layers of 9 mm.

Installation step 6: Pipe insulation in PP1

Inside PP1 use precut flat pieces, glued together

Glued junction from tubular to rectangular section at PP1 entry

Insulation of Y-section being done alreardy now!

Installation step 7: Heating cable in PP1

connection

30 W/m heating cable,length ~7 m / standard PP1,Routed on outer surfaces of the pipe channel

Installation step 7: Heating cable in PP1

Aluminium or plastic clamps and aluminium tape on top of the cable

Heating cable follows the Y-piece (not present in this photo)

Installation step 8: Barrel MS & Ctrl cables

Here we have installed 7 cooling pipes40 multi-service cables

This represents the biggest channel occupancy, which is7 cooling pipes38 multi-service cables6 ctrl-cables (≈ 2 MS-cables)

Channel sections 1-4

Channel section 5

Installation step 8: Barrel MS & Ctrl cables

The covers fit, tightly

Edges of covers 2 and 5 need to be slightly bent, to avoid scratching cables

Installation step 9: TEC optoribbons

All pipes, including TEC pipes, must be in place

and insulated before installing optoribbons

Installation step 10:TEC cables

Installation step 11:Special cables, etc.

Channels for these ribbons to reach the PP1 are at these phi-locations

1 cm

Last 1 cm of TK volume for TEC

cables