LIGO-G M May 17, 2006 Installation (INS) Requirements and Design Breakout Presentation NSF Review of Advanced LIGO Project Dennis Coyne, Caltech

LIGO-G M May 17, Installation (INS) WBS Functions INS is the project phase between subsystem assembly & project completion Includes: Removal » Removal of existing detector equipment » Disposition or storage of equipment » Particulate clean up of vacuum chambers Installation » Installation of Vacuum Equipment » Installation of all Detector Equipment –External to vacuum system –Internal to vacuum system Testing » In-situ Unit/subsystem Testing » Integrated System-Level Testing Does not include: Installation Planning (FMP scope) Installation Staging (FMP scope) Assembly (subsystem scope) Unit Acceptance testing (subsystem scope) Installation Fixtures (subsystem & FMP scope) Commissioning (beyond project scope) Data & Computing System (DCS) installation & test

LIGO-G M May 17, Basic Strategy Start with Livingston (L1) to minimize impact of initial problem discovery » Unless world-wide gravitational network status sets other priorities LIGO manages all INS activities » No subcontracted effort » Skilled trade labor all directed by LIGO staff Prior to INS start: » All production/fabrication and assembly are completed (reduce labor distraction and delays from late deliveries) » Integrated Testing & Training at LASTI Lab & 40m Lab –Pre-Stabilized Laser + Input Optics + Data Acquisition/Networking (PSL+IO+DAQ) –Seismic Isolation System + Suspension Assemblies + partial Interferometer Sensing & Control + Data Acquisition/Networking (SEI+SUS+~ISC+~DAQ)

LIGO-G M May 17, INS Procedure Development & Training at the MIT LASTI Facility Large Full-Scale Prototype Assemblies are Installed & Tested in the LASTI Facility Chambers Mode Cleaner, Triple Suspension Installation in a HAM Chamber at LASTI Quadruple Suspension Installation on Temporary Optics Table at LASTI Internal Seismic Isolation (ISI) Assembly at LASTI (to be installed in BSC Chamber in 2006)

LIGO-G M May 17, Basic Strategy (continued) After INS Start: » Simultaneous installation at both observatories (optimum staff utilization) » Time phased installation of subsystems (leveling load on experts) –Sufficient to transfer/re-direct expertise to support 2 nd observatory installation –Insufficient time to rework – rely upon subsystem/subassembly testing and LASTI system testing » Significant participation & support from observatory staff (training) » Installation & Integrated Testing are parallel activities –emphasis on early discovery of problems at integrated systems level –emphasis on installation of in-vacuum components ASAP

LIGO-G M May 17, Installation Readiness Installation Readiness Review to be held prior to switching off an Operating Observatory Litmus Test for Readiness: » Agreement between LSC & LIGO Lab that switching off a working LIGO interferometer will not cripple the world-wide network of gravitational wave observatories » All Installation Procedures Approved –Note that many procedures developed for Initial LIGO are common to AdL » Critical Installation Activities & Tooling have been Tested (LASTI testbed) » Sufficient assembly, check-out and delivery of subsystem components completed, so that installation will not be supply chain limited

LIGO-G M May 17, Seismic Isolation, HEPI Subsystem Installation at LIGO Livingston Observatory Helical Spring (1 of 2) Vertical Actuator Horizontal Actuator Crossbeam Pier Coarse & Fine (PEPI) Actuation Systems HEPI

LIGO-G M May 17, INS Organization & Team Composition Organization: » Centralized, flat organization » Program Manager directs INS effort » Separate on-site management for Installation and Integrated System Test Teams: » Subsystem focused » Installation teams comprised of the subsystem staff (designed & fabricated the hardware) » Plus observatory staff (assembled & tested the hardware) » Plus hired temporary (contract) staff (particularly skilled trade labor and technicians) as needed

LIGO-G M May 17, INS Basic Tasks/Sequence for a single Interferometer

LIGO-G M May 17, LHO LVEA STAGING/STORING AREAS PSL OUTER & INNER ENCLOSURES LARGE ITEM ACCESS ROUTE ELECTRONICS RACK ENCLOSURE FOR THE FOLDED INTERFEROMETER ISC TABLE ASSY AREA SEI & SUS CLEAN ROOM CARTRIDGE ASSY AREA BSC & HAM SEI ASSY. IN CRATES SUS ASSY. IN CRATES HEPI PUMP STATION AREA

LIGO-G M May 17, End Station Revise to show cartridge assembly clean room BSC CHAMBER RELOCATED FROM MID- STATION STAGING AREAS

LIGO-G M May 17, BSC Cartridge Installation on Test Stand overhead crane Clean room Clean cover frame SEI BSC SUS quad (without structure shown) In general the entire BSC optics table payload and all counterbalance mass is installed as part of the cartridge Quadruple Suspension Installation on Temporary Optics Table at LASTI

LIGO-G M May 17, BSC Cartridge Insertion into BSC Chamber

LIGO-G M May 17, Installation/Integration Challenges Subsystem deliveries may be late » Readiness Review to decide whether to start or delay Safety » Tight procedures & training (as was done in Initial LIGO) » Light Source Physically locked within PSL Enclosure during most of the Installation effort » Strict adherence to Safety Plan Timely Transfer of Lessons Learned from 1 st Interferometer to 2 nd & 3 rd » Staggered Starts (9 months) » Common management & key staff Quality Assurance » In-situ Subsystem Testing for acceptance is mandatory

LIGO-G M May 17, Approach to Establishing the Basis Of Estimate Costs » Bottom-up: –Labor mix and hours based on team composition per task times expected task duration and times needed duty cycle for labor skills » Top-Down: –Compare to Initial LIGO Travel Cost during Installation & Integrated Test –Compare to Initial LIGO Labor Costs during Installation & Integrated Test –Justify differences Schedule » Engineering judgment/estimate of major phase durations based on Initial LIGO experience » Compare to Initial LIGO duration

LIGO-G M May 17, Initial LIGO Time Line Installation, Integration/Testing, Commissioning & Running NowInauguration E2 Engineering E3 E5 E9E10 E7 E8 E11 First LockFull Lock all IFO First Science Data S1 S4 Science S2 Runs S3S K strain noiseat 150 Hz [Hz -1/2 ] 4x AdL Project (MREFC) Scope 2.7 years duration Started install 7/98