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Status of LHC installation & New Installation Schedule

Status of LHC installation & New Installation Schedule. Planning issue. Sector 1-2, 2-3 & Point 3. LSS1R Q1 & Q3 reparation on surface, transport and lowering of low- β scheduled CW27-29 Arc 1-2 & DS Interconnection in progress, global advancement ~35% TI2

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Status of LHC installation & New Installation Schedule

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  1. Status of LHC installation&New Installation Schedule Sylvain Weisz - LEMIC

  2. Planning issue Sector 1-2, 2-3 & Point 3 • LSS1R • Q1 & Q3 reparation on surface, transport and lowering of low-β scheduled CW27-29 • Arc 1-2 & DS • Interconnection in progress, global advancement ~35% • TI2 • Magnets (MQI/MBI) and TED in place, beam-pipe installation in progress  last LHC Arc cryo-magnets in UJ22 (MB2311/SSS652/MB3390) in place • LSS2L • Short circuit tests in progress • MKI not available, Alice ZDC installation CW24-25 • Low-β repair & interconnection takes up to CW43  critical for completion of Sector 1-2 • LSS2R • Q3.R2 on surface, DFBAD HCM in place, LCM available July 4th • Short circuit tests completed last week • Arc 2-3 & DS • Interconnection in progress: ~70% global advancement • Q11.R2 has a short and will be replaced (SSS ready CW32)  impact on interconnect activity • LSS3L/R • DSLC: leaky compensators on thermal shield lines, should be replaced • Q6.L3 and DFBMD available, installation pending completion of DSLC • Installation of last warm magnets postponed, pending DSLC installation • Modification of power cabling in UJ33 scheduled CW23-27 Sylvain Weisz - LEMIC

  3. Low-β repair: conceptual drawing to implementation  Cartridge model for fixed point reinforcement Cartridge installation in Q1.R1  (done in Bld. 181)

  4. LSS1R Q1 & Q3 reparation on surface, transport and lowering of low-β scheduled CW27-29 Arc 1-2 & DS Interconnection in progress, global advancement ~35% TI2 Magnets (MQI/MBI) and TED in place, beam-pipe installation in progress  last LHC Arc cryo-magnets in UJ22 (MB2311/SSS652/MB3390) in place LSS2L Short circuit tests in progress MKI not available, Alice ZDC installation CW24-25 ??? Low-β repair & interconnection takes up to CW43  critical for completion of Sector 1-2 LSS2R Q3.R2 on surface, DFBAD HCM in place, LCM available July 4th Short circuit tests completed last week Arc 2-3 & DS Interconnection in progress: ~70% global advancement Q11.R2 has a short and will be replaced (SSS ready CW32)  impact on interconnect activity LSS3L/R DSLC: leaky compensators on thermal shield lines, should be replaced Q6.L3 and DFBMD available, installation pending completion of DSLC Installation of last warm magnets postponed, pending DSLC installation Modification of power cabling in UJ33 scheduled CW23-27 Sector 1-2, 2-3 & Point 3 Planning issue 19 June 2007 Sylvain Weisz - LEMIC 4

  5. Sector 3-4 & 4-5 • Arc 3-4 & DS • Interconnection in progress, global advancement ~95% • 10 vacuum sub-sectors (out of 14) delivered to VAC, 7 leak tight and 3 under test • Reparation on-going on 500 series SSS (Q7-Q11.R3), need to open cold masses  hold completion of interconnect in arc 3-4 • LSS4L/R • All elements in place, NEG activation of straight section completed this week  BGI detector damaged using wrong bake-out cycle! • Klystron power tests in progress in UX45 • Short to ground on MCB circuit in Q5.R4  reparation after 1st HW commissioning period of sector 4-5 • Arc 4-5 & DS • Interconnection completed, pressure test passed successfully on May 11-12th • He flushing in progress • Cryo instrumentation checks, ELQA at warm and polarity checks in progress • Replacement of 28 Velan valve puppets end of this week  Cool-down of Sector 4-5 starts CW26 (next week) • LSS5L • Low-β: DFBX/Q3/Q2/Q1.L5 back on surface for repair  Cool-down 4-5 without low-β • Power test of warm magnets (D1.L5) completed • First Roman Pots station in place Sylvain Weisz - LEMIC

  6. Sector 5-6, 6-7 & Point 7 • LSS5R • Reparation of low-β fixed points scheduled CW27-33  critical path for completion of Sector 5-6 • Power test of D1.R5 completed, test of low-β wire based alignment system in progress • Interconnect Q4/Q5/Q6-DSLE and Q7-DFBAJ in progress • Arc 5-6 and DS • Interconnection in progress, global advancement ~90%, 5 vacuum sub-sector completed • LSS6L • DFBAK: HCM, LCM and LEJL connection cryostat in place • Special configuration of DFBAK Proximity Equipment requiring extra ELQA (TP2) in place • MKD tests in progress, difficult co-activity with dump line installation  dump line completion resumes after August 15th • LSS6R • Installation of MKD and MKB tests in progress • DFBAL HCM and LCM in place, ELQA (TP2) on-going with proximity equipment in place • Arc 6-7 & DS: • Interconnect in progress, global advancement ~55% • LSS7L/R • Preparation for warm magnet tests in progress (alignment smoothing done) - tests scheduled CW25-28 • Collimator supports in place, collimator installation starts CW29 after warm magnet tests Sylvain Weisz - LEMICC

  7. Sector 7-8 Temperature stabilisation and Power tests • Cryogenics conditions are now very stable below λ point • Ice accumulation problems on current leads have been solved with the installation of dry air bags • D2, Q4 & Q5 (4.5K magnets) have been powered to their nominal current (6 kA) • Main arc circuits (MB & QF/QD) and correctors chains have been qualified at cold • Quench protection systems and associated heaters have been validated • Tests of Powering Interlock Controller are almost complete  Powering of the arc magnets is imminent … • But repairs in sector 7-8 (replacement of 1055, PIMs, bus-bar on SSS 500, etc…) start early August  Need 4 weeks for warm-up, power tests have to stop prematurely Sylvain Weisz - LEMIC

  8. Sector 8-1 • LSS8R • Low-β: HX reparation completed, interconnect (H pieces) completed, fixed point strenghtening (cartridge installation) CW25-31  critical path for completion of Sector 8-1 • Test of LHCb warm compensators (MBXW) completed • Y vacuum chamber available: D1-D2 vacuum installation in progress • Arc 8-1 • Interconnections completed  Pressure test passed with success on June 9-10th • LSS1L • Interconnection of DFBLA to DSLA completed • Installation of D1-D2 vacuum chamber in progress • Low-β: HX reparation completed, interconnect (H pieces) completed, fixed point strenghtening (cartridge installation) CW25-31  critical path for completion of Sector 8-1 Sylvain Weisz - LEMIC

  9. Installation Summary • Interconnections: • Completed in Sectors 7-8, 8-1 & 4-5, pressure tests Ok • 92% of magnet to magnet electrical connections done, 51% of W closures completed  Expect closure of sector 1-2 (arc & DS), incl. leak tests, by end of September • Uncertainties and delays from repair of Serie 500 bus-bar insulation • Preparation for short circuit tests: • Tests in progress in Point 2L (14/15 power station tested) • Preparation for tests in Point 1R on schedule • Tests in UJ33 will be re-done after modification of power cables routing • Installation of warm beam pipes in long straight sections: • Components procurement Ok, ~200m/wk installed and activated • Advancement below expected rate, perturbed by: • Area not available: LSS3L/R or UJ62-63 (for dump line) • Co-activities: Point 6 (with kicker), Point 8R (with warm magnet tests) • Uncertainty on equipment installation: collimators in LSS7L/R Sylvain Weisz - LEMIC

  10. Installation rate of LSS warm beam pipe Courtesy of Miguel Jimenez Sylvain Weisz - ICC

  11. LHC Construction and InstallationGeneral co-ordination Schedule LHC project Document N° LHC-PM-MS-0005.1 rev. 4.0 CERN Dep./Group/Contractor Document N°. TS/IC EDMS Document N°. 102509 12 June 2007 Mar. Mar. 12 23 34 45 56 67 78 81 Apr. Apr. May May Jun. Jun. Jul. Jul. Aug. Aug. Sep. Sep. Oct. Oct. Consolidation Nov. Nov. Dec. Dec. . Jan. Jan. Feb. Feb. Mar. Mar. Apr. Apr. Operationtesting of availablesectors May May Jun. Jun. Machine Checkout Jul. Jul. BeamCommissioning to 7 TeV Aug. Aug. Sep. Sep. Oct. Oct. Nov. Nov. Interconnection of the continuous cryostat Global pressure test &Consolidation Warm up Dec. Dec. Leak tests of the last sub-sectors Flushing Powering Tests . Inner Triplets repairs & interconnections Cool-down Prepared by Katy Foraz

  12. New Installation Schedule - General Features • Sector 4-5: Arc & DS ready  cool-down without low- • Sector 3-4: Delays with DSLC  cool-down without DSLC Get experience with HW commissioning of 2 sectors in parallel Time window for fixes after 1st HW commissioning period Need for an extra warm-up/cool-down cycle • Sector 7-8: Repairs scheduled Aug.-Sept.  power tests stop early July • Sector 8-1: Repair low- (8R & 1L) before cool-down Need to warm-up sector 7-8 before completion of first power tests program Cool-down and test low- as early as possible • HW commissioning directly up to 7 TeV Need to commission many sectors in parallel Get ready for physics by summer 2008 Sylvain Weisz - LEMIC

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