Update on quadruple suspension design for Advanced LIGO

被引：130

作者：

Aston, S. M. ^{[2
,8
]}

Barton, M. A. ^{[3
]}

Bell, A. S. ^{[4
]}

Beveridge, N. ^{[4
]}

Bland, B. ^{[3
]}

Brummitt, A. J. ^{[5
]}

Cagnoli, G. ^{[4
]}

Cantley, C. A. ^{[4
]}

Carbone, L. ^{[2
]}

Cumming, A. V. ^{[4
]}

Cunningham, L. ^{[4
]}

Cutler, R. M. ^{[2
]}

Greenhalgh, R. J. S. ^{[5
]}

Hammond, G. D. ^{[4
]}

Haughian, K. ^{[4
]}

Hayler, T. M. ^{[5
]}

Heptonstall, A. ^{[1
]}

Heefner, J. ^{[1
]}

Hoyland, D. ^{[2
]}

Hough, J. ^{[4
]}

Jones, R. ^{[4
]}

Kissel, J. S. ^{[9
]}

Kumar, R. ^{[4
]}

Lockerbie, N. A. ^{[6
]}

Lodhia, D. ^{[2
]}

Martin, I. W. ^{[4
]}

Murray, P. G. ^{[4
]}

O'Dell, J. ^{[5
]}

Plissi, M. V. ^{[4
]}

Reid, S. ^{[7
]}

Romie, J. ^{[8
]}

Robertson, N. A. ^{[1
,4
]}

Rowan, S. ^{[4
]}

Shapiro, B. ^{[9
]}

Speake, C. C. ^{[2
]}

Strain, K. A. ^{[4
]}

Tokmakov, K. V. ^{[6
]}

Torrie, C. ^{[1
,4
]}

van Veggel, A. A. ^{[4
]}

Vecchio, A. ^{[2
]}

Wilmut, I. ^{[5
]}

机构：

[1] CALTECH, LIGO Lab, Pasadena, CA 91125 USA

[2] Univ Birmingham, Sch Phys & Astron, Birmingham B15 2TT, W Midlands, England

[3] LIGO Hanford Observ, Richland, WA 99352 USA

[4] Univ Glasgow, Sch Phys & Astron, Inst Gravitat Res, Glasgow G12 8QQ, Lanark, Scotland

[5] Rutherford Appleton Lab, Dept Engn, Didcot OX11 0QX, Oxon, England

[6] Univ Strathclyde, Dept Phys, SUPA, Glasgow G4 0NG, Lanark, Scotland

[7] Univ W Scotland, SUPA, Thin Film Ctr, Paisley PA1 2BE, Renfrew, Scotland

[8] LIGO Livingston Observ, Livingston, LA 70754 USA

[9] MIT, LIGO Lab, Cambridge, MA 02139 USA

来源：

CLASSICAL AND QUANTUM GRAVITY | 2012年 / 29卷 / 23期

基金：

英国科学技术设施理事会; 美国国家科学基金会;

关键词：

GRAVITATIONAL-WAVE DETECTORS; TRIPLE PENDULUM SUSPENSION; FUSED-SILICA; GEO; 600; SEISMIC ISOLATION; MECHANICAL LOSS; MARAGING-STEEL; FIBERS; SYSTEM;

D O I：

10.1088/0264-9381/29/23/235004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We describe the design of the suspension systems for the major optics for Advanced LIGO, the upgrade to LIGO-the Laser Interferometric Gravitational-WaveObservatory. 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/root 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.

引用

页数：25

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