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18 April 2024

» arxiv » 1502.6300

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Seismic isolation of Advanced LIGO gravitational waves detectors: Review of strategy, instrumentation, and performance
F. Matichard ; B. Lantz ; R. Mittleman ; K. Mason ; J. Kissel ; J. McIver ; B. Abbott ; R. Abbott ; S. Abbott ; E. Allwine ; S. Barnum ; J. Birch ; S. Biscans ; C. Celerier ; D. Clark ; D. Coyne ; D. DeBra ; R. DeRosa ; M. Evans ; S. Foley ; P. Fritschel ; J.A. Giaime ; C. Gray ; G. Grabeel ; J. Hanson ; C. Hardham ; M. Hillard ; W. Hua ; C. Kucharczyk ; M. Landry ; A. Le Roux ; V. Lhuillier ; D. Macleod ; M. Macinnis ; R.Mitchell ; B. O Reilly ; D. Ottaway ; H. Paris ; A.Pele ; M. Puma ; H. Radkins ; C. Ramet ; M. Robinson ; L.Ruet ; P. Sarin ; D. Shoemaker ; A. Stein ; J. Thomas ; M. Vargas ; K Venkateswara ; J. Warner ; S.Wen ;
Date:	23 Feb 2015
Abstract:	Isolating ground-based interferometric gravitational wave observatories from environmental disturbances is one of the great challenges of the advanced detector era. In order to directly observe gravitational waves, the detector components and test masses must be highly inertially decoupled from the ground motion not only to sense the faint strain of space-time induced by gravitational waves, but also to maintain the resonance of the very sensitive 4 km interferometers. This article presents the seismic isolation instrumentation and strategy developed for Advanced LIGO interferometers. It reviews over a decade of research on active isolation in the context of gravitational wave detection, and presents the performance recently achieved with the Advanced LIGO observatory. Lastly, it discusses prospects for future developments in active seismic isolation and the anticipated benefits to astrophysical gravitational wave searches. Beyond gravitational wave research, the goal of this article is to provide detailed isolation strategy guidelines for sensitive ground-based physics experiments that may benefit from similar levels of inertial isolation.
Source:	arXiv, 1502.6300
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