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SCT Services Installation

SCT Services Installation. SCT Cables Web page http://www-atlas.lbl.gov/ciocio/SCTcables/ Workpackage https://edms.cern.ch/document/593278/. 5. 7. 3. 1. 9. 15. 11. 13. Cable trays from Calorimeter Barrel to HS. Type II cables. Type III cables. PP1. Type II-III cables

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SCT Services Installation

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  1. SCT Services Installation SCT Cables Web page http://www-atlas.lbl.gov/ciocio/SCTcables/ Workpackage https://edms.cern.ch/document/593278/ A. Ciocio

  2. 5 7 3 1 9 15 11 13 Cable trays from Calorimeter Barrel to HS Type II cables Type III cables PP1 A. Ciocio

  3. Type II-III cables from Cryostat PP3 Racks - USA side Type IV cables from Power Supplies racks in USA15 Sector 7 Sector 9 Sector 11 Through corridors About 70 meters A. Ciocio

  4. Type IV cables from Power Supplies racks in US15 Through wall holes About 30 meters Type II-III cables from Cryostat PP3 Racks - US side Sector 3 Sector 1 Sector 15 A. Ciocio

  5. Type II/III power cables • 4088 cables: installation and testing completed ! • 2112 barrel cables & 1976 Endcap cables • 3594 cables (including all the 2112 Barrel) installed between March-July • 494 (EC sector 11&15) installed in the past 3 weeks Yield 99% production (defects) + installation (damage) A. Ciocio

  6. Type II/III cables - THANKS • THANKS to TC for the fantastic job to complete successfully such complex installation • THANKS to the all SCT institutes for sending their technical staff to work on the preparation of cables and testing • THANKS to our PL for supporting through CERN or SCT the more long-term technical staff over the past several months July 18th 2006 Celebration for the completion of Barrel cables installation A. Ciocio

  7. Type II/III cables in progress • 80% of the cables fixed on cable trays and positioned in PP3 (TC) • Additional inspection, final verification and repair of damaged wires • (yield might go down) • Re-position of EC bundles and clamp on the flange • Test of the whole chain from Cryostat to Power Supply A. Ciocio

  8. PP3 Parts Summary (original) A. Ciocio

  9. PP3 Assembly & Installation • Assembly and Installation started last January and was completed in July • All type IV were plugged in + type III barrel cable (and EC) of sector 1, 3, 9 • Test of whole chain was almost completed for Barrel (US side) • Since first installation (January) of PP3 many problems were found and repairs implemented (see previous reports) • Insulation between units • Sliding units in subracks • Failed units (2+) • Shorts to the top hat outer shell • During test of whole chain new shorts appeared suggesting that the insulation of the units near the corners of the subracks is not strong enough to resist wearing or puncturing from any metallic dust and it can be damaged by just plugging in more cables Therefore it was decided to rework ALL subracks in the 17 PP3 racks A. Ciocio

  10. PP3 Rework • PP3 subracks containing 30 units to be: • disassembled • Cleaned • glued properly • plastic layers (0.25 mm polyethylene terephthalate) to be inserted between all sides of PP3 units • Disconnection of all cables was completed last week (by the SCT cabling/testing team) • 8000+ cables were hanging by the racks for several days • Scott Moncrieff and Ashley French were back Sept 4 (leaving next week) to do this rework • Rework has started (last Thursday) but with 2 ½ weeks delay because the material arriving from Australia (new/larger outer shells, etc.) was late A. Ciocio

  11. PP3 Rework Plan • Taking into account: • Connector in situ work • PS installation • Time to reconnect • Time to test whole chain A. Ciocio

  12. Type IV Cables Installation • US side: • Type IV cables (2044+spares) from PP3 racks in the ATLAS cavern to PS racks in US15 • Installed in 2005 • With connectors (March 06) • 9 PS racks (8 for barrel) installed and cables plugged into PS backplanes • USA side: • Type IV from PP3 to USA15 installation completed (end of July) • All type IV were connected to PP3 (17 racks in UX15) until 1 month ago • Currently installing a few more spare cables in several racks (USA side) A. Ciocio

  13. Type IV Cables – Related • Connector in situ (CPE) • All connectors (2100+) in US15 completed in March • 2+1 CPE techs returned in mid-April for a few weeks • Rework of faulty connectors in US side • Started 2 USA racks but left again because more USA15 racks were needed to be completed for the full team to operate efficiently • 4 CPE techs returned on August 1st • Very slow startup - problems with the Company • 5 barrel (or mixed) racks in USA15 are completed as of today • 2 racks this week (probably only one) • The 7th 8th USA racks with Barrel cables will be completed during PS installation • all barrel cables will be at least cut to length before PS installation • The last 3 racks (EC) by Mid/End-October • Testing • All cables are tested as they are plugged in row by row during PS connection • All cables are tested 100 at a time as connectors are made • Test of whole chain was performed on the US side (80 %) in end-July/August • PS installation in USA15 (see next talk) • started last week • first plug-in Sept 25 A. Ciocio

  14. PS rackslayoutpriorities for connector in-situ and plug-in A. Ciocio

  15. Schedule • Barrel • Type IV installation (spares) end-September • All Connector in situ + testing mid/end-October • PS crates (Barrel USA15) mid-October • PP3 rework end-September • All cables re-plugged into PP3/PS mid/end-October • Test of whole chain (Barrel) end-October • Endcap • 2 (US15) + 3 (USA15) PS racks installation November • Test of whole chain December A. Ciocio

  16. Work Plan A. Ciocio

  17. Manpower • PP3 rework is in progress • Need (crucial!) • 3 additional techs/physicist this week • 2 techs to help connecting • 1 person (student OK) to help with the rework in the lab • Need • 3 additional techs the first 3 weeks of October • To help connecting • Testing • Delay of connector in situ will involve more flexibility and additional adjustment of the schedule for • Re-connecting cables and testingthe whole chain • More help needed in October A. Ciocio

  18. PEOPLE A. Ciocio

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