18 July 2006A.Ciocio -SCTSG1 SCT Services Installation ID week full report (July 4) SCT Cables Web...
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Transcript of 18 July 2006A.Ciocio -SCTSG1 SCT Services Installation ID week full report (July 4) SCT Cables Web...
18 July 2006 A.Ciocio -SCTSG 1
SCT Services Installation
ID week full report (July 4)SCT Cables Web page http://www-atlas.lbl.gov/ciocio/SCTcables/Workpackage https://edms.cern.ch/document/593278/
18 July 2006 A.Ciocio -SCTSG 2
Type II/III cables – Installation
• 3594 cables installed and testedAll 2112 barrel cables (sectors 1,3,7,9,11,15)All endcap cables for sectors 1,3,7,9
494 (sector 11&15) will be installed in August
Yield: <1% cables with defects or to replace
- Mechanical defects- Damage during installation or preparation- Failed electrical test (most probably due to splice damage) after installation (replaced)
Additional inspection of damage and final verification that individual wires are strongly fixed inside the JST and FCT when they will be disconnected from dPP1.
18 July 2006 A.Ciocio -SCTSG 3
Type II-III and Fibre Cables by Sector
S5
S3 S7
S1 S9
S15 S11
S13
US PP3 racks
USA PP3 racks
384 Barrel
494 EC
384 Barrel
494 EC
336 Barrel
247 EC
336 Barrel
247 EC
336 Barrel
247 EC
336 Barrel
247 ECLevel 7
Level 6
Level 2
Level 8
Level 5 & 2
Level 1 & 2
18 Fibre cables (EC)
27 Fibre cables (9 EC, 18 Barrel)
18 Fibre cables (Barrel)
27 Fibre cables (9 EC, 18 Barrel)
27 Fibre cables (9 EC, 18 Barrel) 27 Fibre cables (9 EC, 18 Barrel)
• Fibre Cables to USA15
18 July 2006 A.Ciocio -SCTSG 4
SCT Cables by Sectors Sequence• Sector 5 (top) and Sector 13 (bottom)
– heater cables, and DCS cables (completed)
• Sector 9 - Installation completed on May 1– 878 SCT cables (384 Barrel, 494 EC)– 18 Fibre cables (EC)
• Sector 3 - Installation started on May 2 – completed on June 4– 583 SCT cables (336 Barrel, 247 EC)– 27 Fibre cables (9 EC,18 Barrel)
• Sector 1 - started in parallel mid May – completed on June 13– 878 SCT cables (384 Barrel, 494 EC)– 18 Fibre cables (Barrel)
• Sector 7 – started on June 7 – completed on June 29– 583 SCT cables (336 Barrel, 247 EC)– 27 Fibre cables (9 EC,18 Barrel)
• Sectors 11, 15 – 336X2 barrel cables installed – July 18– 583 + 583 SCT cables (336 Barrel, 247 EC)– 27 + 27 Fibre cables (9 EC,18 Barrel)
• Installation sequence in a sector is:– Tubes, fibres, heater cables, SCT cables, (Muon cables), – TRT cables, pixel cables
18 July 2006 A.Ciocio -SCTSG 5
Type IV Cables - Installation
• All type IV cables (2044+spares) going from PP3 racks in the ATLAS cavern to PS racks in US15 installed (+ connectors)
• Type IV going to USA15 almost completed– 64 double harnesses to install (128 cables)– 6 more days
• Testing in racks after installation and first cut ongoing
Completed installation is expected in one week
18 July 2006 A.Ciocio -SCTSG 6
Type IV – Connectors in situ
• All connectors (2000+) in US15 completed on March 10 (a few were left but they are done now)
• Many racks are tested before and after plug into PS (Petr with Prague team)
• Very good yield but some rework was necessary • One rack (the very first one made more than an year ago) needs
cables rerouting (cables were cut too long by previous company)
• 2+1 CPE techs returned in mid-April for a few weeks– US side was reworked– Started 2 USA racks but left again because more USA15 racks
were needed to be completed for the full team to operate efficiently
• A team of 6 techs (1 supervisor) will return this week
• Estimated completion of connectors in USA racks: End of August
18 July 2006 A.Ciocio -SCTSG 7
PP3
• Assembly and Installation completed • Checks for shorted units and problems in progress• Plug-in of type IV cables• Problems found after installation in the last few months
– Insulation– Sliding units in subracks – Failed units (2+)
PP3 units installed in racksChannel
Spare units in racks
42614088
173
PP3 - failed (back for inspection and rework) 10
Subracks (30 PP3 units in a shell) 137
Subracks - special (shells of 30 partially filled with PP3 and the rest with empty boxes)
9
Subracks – mini(shells of 5 units for spares PP3 in a full rack)
4
ExtraPP3 units
Shells
Mini shells
Empty boxes
2
2
4
110
18 July 2006 A.Ciocio -SCTSG 8
Installation & Testing Activities
Type IV
Acceptance test (done)
Test in rack after installation
Test of cut cables after connector in situ work
Plug-in cables into PS crates Test with feedtrough
Type II-III Preparation ----ALL DONEAcceptance test (partial)
Visual inspection
Folding the shield and cut it the right amount, fix it
Organize boxes with right cables to send for installation
Type II-III Installation
Mount dPPB1 and dPPF1
(Barrel) Squeezing the cables to fit between pin and clamp holder
Plug-in of the delicate JST/FCI connectors to dPPB1
Placing the clamp (now), placing the clip (later) -- DONE
(ENDCAP) crimp group of drain wires in a ferrule and catch the ferrule with the grub screws into clamp’s holes
Plug in the dPPF1
Type II-III Testing
Type II-III replacing bad cables
PP3
Burn-in of units -- DONE
Assembly into subracks -- DONE
Installation into racks of subracks -- DONE
Plug-in the cables to PP3
Test of whole chain
18 July 2006 A.Ciocio -SCTSG 9
Schedule
• Type II-III barrel installation completed today Endcap cables of sector 11&15 to install after the Solenoid Field Mapping (July 19- Aug 14)
• Type II-III installation mid-July (Barrel) end of August (last
Endcap cables – 494)
• Type IV installation 24 July• Connector in situ+testing end of August• PS crates end-July (US side) – September (USA side)• PP3 assembly, installation end-July
• All cables plugged into PP3 mid-July- begin August (type IV) end-August (type II-III)
• Test of whole chain now – mid September
18 July 2006 A.Ciocio -SCTSG 10
Plan
18 July 2006 A.Ciocio -SCTSG 11
PS priorities
18 July 2006 A.Ciocio -SCTSG 12
Issues• PP3
– We find problems as we plug in and test– Type IV all connected by end of July– Hopefully OK when Type III are connected
• Tester– Different flavor that work with different configuration of cable
chain– Multiple laptops failure (~ok now)– Need help at CERN of experts (Ljubljana) when testing whole
chain• Defective dPPF1
– Some faulty cables were actually due to a bad channel on dPP1 (3 endcap 3 barrel)
– Still missing some dPPF1• Connector in situ
– Delay will move installation of PS later • Need more HELP with testing until end of August (mid September)