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Adv. LIGO Facilities Modifications (FAC)Plans, Schedule, Costs, Team

Plan, Schedule Costs Team

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Adv. LIGO Program Management (FAC)Scope

Conversion of the 2km vacuum system to 4 km» Move the mid-station BSC chamber to the end station connected to the

existing BSC chamber with a spool piece» Install a vacuum spool piece (pipe) in the mid-station where the BSC

chamber previously resided Portable Clean Rooms

» Build more HAM and BSC units to support more parallel installation activity and to support SEI and SUS clean assembly; for each observatory:

– 2 BSC-size clean rooms for high bay assembly area for SEI and SUS– 2 BSC-size clean rooms in the corner LVEA and 1 per end-station VEA for

SEI/SUS integration for “cartridge” installation into chambers– 1 additional HAM-size clean room for parallel installation of input and output optics– And 2 additional BSC-size clean rooms for LHO to eliminate need for clean rooms

to pass from one IFO to the other and to support parallel installation preparation

Input/Output Mode Cleaner Tube Replacement & Bake-out» Larger diameter vacuum tubes are needed for the input & output sections» Tubes must be vacuum baked (perhaps stand-alone)

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Larger Diameter Mode (MC) Cleaner Tubes

Larger diameter tube

Larger diameter tube

Possibly largerdiameter tube

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Adv. LIGO Program Management (FAC)Schedule

Procurement/contracting for the FAC equipment is not schedule critical (lots of float)

Installation of the IO vacuum tubes occurs during installation activities

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FAC Costs

All costs are in base year dollars (un-escalated) Total cost = $4,182K including 22% contingency Proposed construction cost = $4,182K – 1.7 x $198K direct

labor incl. indirect = $3,845K Direct labor costs are borne by LIGO operations funds

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FAC Costs: 2km to 4km Conversion

2km to 4km conversion estimate based on initial LIGO experience Planned as a subcontract ($370K) with Lab oversight/management

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FAC Costs: Clean rooms

Costs based on initial LIGO actual costs for clean rooms, escalated to base year dollars

Includes estimate for in-house labor to place and oversee the clean room fabrication contract

$1,032K IFO1 + $747K IFO2 = $1,779K total

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FAC Costs: I/O Tubes

$651K IFO1 + $585K IFO2 + $585K IFO3 = $1,821K total

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Adv. LIGO Program Management (PM)Team

Cognizant Engineers:» John Worden

– Directed the initial LIGO Vacuum equipment effort– LHO Vacuum Equipment Lead Engineer

» Alan Sibley– Directed the initial LIGO Beam Tube bake-out effort at LLO– LLO Vacuum Equipment Lead Engineer