Advanced LIGO - Cost & Schedule

Milestones for potentially critical path Advanced LIGO activities are listed in Table 1. These milestones are coordinated with the development schedule.

Table 1 Advanced LIGO construction/installation summary milestones

Milestone	Date at End of Quarter per Calendar Year
NSF early funding for Core Optics available	1 Apr 2004
NSF funding for Advanced LIGO Construction available	1 Apr 2005
Vacuum equipment contract placed	26 May 2005
Vacuum equipment ready to install	10 Nov 2006
Clean rooms contract placed	1 Apr 2005
Clean rooms available for vacuum equipment area	8 Mar 2007
Seismic Isolation final design review	17 Nov 2004
Seismic Isolation assembly started	11 Nov 2005
Seismic Isolation ready for installation	17 Aug 2006
Suspension subsystem final design review	8 Mar 2006
Suspension subsystem first articles	15 Nov 2006
Suspension subsystem ready for installation	2 May 2007
Pre-Stabilized Laser final design review	17 Aug 2005
Pre-Stabilized Laser ready for installation	2 Nov 2006
Core Optics Components final design review	27 Apr 2004
Core Optics Components first articles available for Suspention	2 Mar 2006
Interferometer Sensing & Control final design review	16 Jul 2005
Installation begins at Livingston	8 Mar 2007
Installation begints at Hanford	15 Nov 2007
Commissioning begins at Livingston	21 Sep 2007
Commissioning begins at Hanford	29 May 2008
Livingston operational	4 Mar 2009
Hanford operational	6 Jan 2010

Initial LIGO scientific operations will continue during 2007. Through 2006, LIGO Laboratory staff supported under the existing Cooperative Agreement will be carrying out the portions of the LSC R&D program related to Advanced LIGO. Advanced LIGO construction funds will support incremental staff required to carry out Advanced LIGO design, fabrication and assembly.

Following shutdown of the initial LIGO detector systems, a significant portion of the LIGO Laboratory staff becomes available to support Advanced LIGO installation and commissioning. In addition, incremental contractor staff will be added to support installation. These contractors are budgeted in the Advanced LIGO construction estimate.

Participating LSC members from outside the LIGO Laboratory are expected to support installation and commissioning of the LIGO systems.