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SCT Services Installation

SCT Services Installation

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SCT Services Installation

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  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/ A.Ciocio -SCTSG

  2. Type II/III cables – Installation • 3594 cables installed and tested • All 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. A.Ciocio -SCTSG

  3. S5 S3 S7 S1 S9 S15 S11 S13 Type II-III and Fibre Cables by Sector USA PP3 racks US PP3 racks 336 Barrel 247 EC Level 7 336 Barrel 247 EC Level 8 27 Fibre cables (9 EC, 18 Barrel) 27 Fibre cables (9 EC, 18 Barrel) Level 5 & 2 384 Barrel 494 EC 384 Barrel 494 EC Level 6 18 Fibre cables (Barrel) 18 Fibre cables (EC) 336 Barrel 247 EC 336 Barrel 247 EC Level 1 & 2 Level 2 27 Fibre cables (9 EC, 18 Barrel) 27 Fibre cables (9 EC, 18 Barrel) • Fibre Cables to USA15 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 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 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 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+) A.Ciocio -SCTSG

  8. Installation & Testing Activities 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 A.Ciocio -SCTSG

  10. Plan A.Ciocio -SCTSG

  11. PS priorities 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) A.Ciocio -SCTSG