Details

Autor(en) / Beteiligte

• Aston, S M
• Barton, M A
• Bell, A S
• Beveridge, N
• Bland, B
• Brummitt, A J
• Cagnoli, G
• Cantley, C A
• Carbone, L
• Cumming, A V
• Cunningham, L
• Cutler, R M
• Greenhalgh, R J S
• Hammond, G D
• Haughian, K
• Hayler, T M
• Heptonstall, A
• Heefner, J
• Hoyland, D
• Hough, J
• Jones, R
• Kissel, J S
• Kumar, R
• Lockerbie, N A
• Lodhia, D
• Martin, I W
• Murray, P G
• O'Dell, J
• Plissi, M V
• Reid, S
• Romie, J
• Robertson, N A
• Rowan, S
• Shapiro, B
• Speake, C C
• Strain, K A
• Tokmakov, K V
• Torrie, C
• van Veggel, A A
• Vecchio, A
• Wilmut, I

Titel

Update on quadruple suspension design for Advanced LIGO

Ist Teil von

• Classical and quantum gravity, 2012-12, Vol.29 (23), p.235004-25

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2012

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We describe the design of the suspension systems for the major optics for Advanced LIGO, the upgrade to LIGO-the Laser Interferometric Gravitational-Wave Observatory. The design is based on that used in GEO600-the German/UK interferometric gravitational wave detector, with further development to meet the more stringent noise requirements for Advanced LIGO. The test mass suspensions consist of a four-stage or quadruple pendulum for enhanced seismic isolation. To minimize suspension thermal noise, the final stage consists of a silica mirror, 40 kg in mass, suspended from another silica mass by four silica fibres welded to silica ears attached to the sides of the masses using hydroxide-catalysis bonding. The design is chosen to achieve a displacement noise level for each of the seismic and thermal noise contributions of 10−19 m/√Hz at 10 Hz, for each test mass. We discuss features of the design which has been developed as a result of experience with prototypes and associated investigations.