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May 17, 2006

Installation (INS)

Requirements and Design Breakout PresentationNSF Review of Advanced LIGO Project

Dennis Coyne, Caltech

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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

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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 (@MIT) & 40m Lab (@Caltech)

– 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)

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INS Procedure Development & Trainingat 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)

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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 2nd 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

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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

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Seismic Isolation, HEPI SubsystemInstallation at LIGO Livingston Observatory

Helical Spring(1 of 2)

Vertical Actuator

HorizontalActuator Crossbeam

Pier

Coarse & Fine (PEPI) Actuation Systems

HEPI

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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

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INS Basic Tasks/Sequencefor a single Interferometer

DE-INTEGRATION

DISPOSAL/STORAGE

VACUUMMODIFICATIONS

PRE-STABILIZED LASER (PSL) ENCLOSURE

CONTROL & DATA SYSTEMS (CDS)

INFRASTRUCTURE

SEISMIC ISOLATIONHAM CHAMBER

CARTRIDGE INSTALLSUS + SEI + AOSBSC CHAMBER

SUSPENSIONFIBER WELDING/ASSY.

BSC CHAMBER

INPUT & OUTPUT OPTICS

CONTROLS

HYDRAULIC EXTERNALPRE-ISOLATOR (HEPI)

INSTALL

PRE-STABILIZED LASER (PSL)

INPUT OPTICS (IO)SUSPENSIONS (SUS)

AUX. OPTICS SYS. (AOS)HAM CHAMBER INSTALLATION

INTERFEROMETERSENSING & CONTROLS

SEISMIC TESTISI + HEPI

PRESTABILIZED LASER (PSL) + INPUT OPTICS (IO)

INTEGRATED TEST

NEAR-MICHELSON INTEGRATED SYSTEM TEST

FABRY-PEROT ARM CAVITYINTEGRATED SYSTEM TEST

FULL INTERFEROMETERLOCK ACQUISITION

SYSTEM TEST

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LHOLVEA

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

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End Station

Revise to show cartridge assembly clean room

BSC CHAMBER RELOCATED FROM MID-

STATION

STAGING AREAS

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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

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BSC “Cartridge” Insertion into BSC Chamber

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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 1st Interferometer to 2nd & 3rd

» Staggered Starts (9 months)» Common management & key staff

Quality Assurance» In-situ Subsystem Testing for acceptance is mandatory

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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

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Initial LIGO Time LineInstallation, Integration/Testing, Commissioning & Running

NowInauguration

1999 2000 2001 2002 20033 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

E2Engineering

E3 E5 E9 E10E7 E8 E11

First Lock Full Lock all IFO

10-17 10-18 10-20 10-21

2004 20051 2 3 4 1 2 3 4 1 2 3 4

2006

First Science Data

S1 S4Science

S2 RunsS3 S5

10-224K strain noise at 150 Hz [Hz-1/2]4x10-23

AdL Project (MREFC) Scope

2.7 years duration

Started install 7/98