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Damping dilution factor for a pendulum in an interferometric gravitational waves detector

Cagnoli, G., Hough, J., DeBra, D., Fejer, M.M., Gustafson, E., Rowan, S., and Mitrofanov, V. (2000) Damping dilution factor for a pendulum in an interferometric gravitational waves detector. Physics Letters A, 272 (1-2). 39 -45. ISSN 0375-9601 (doi:10.1016/S0375-9601(00)00411-4)

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Publisher's URL: http://dx.doi.org/10.1016/S0375-9601(00)00411-4

Abstract

Mechanical loss in pendulums is a subject of great importance to gravitational waves detectors being built and being planned, as this determines the level of thermal noise associated with the detector suspensions. Relationships between the mechanical loss of the pendulum and the mechanical loss of the suspending fibres or wires can be derived in two apparently contradictory ways which give answers different by a factor of two. In this paper the differences are resolved and it is shown that both methods lead to the same answer.

Item Type:Article
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Cagnoli, Dr Gianpietro and Rowan, Prof Sheila and Mitrofanov, Prof Valery and Hough, Prof James
Authors: Cagnoli, G., Hough, J., DeBra, D., Fejer, M.M., Gustafson, E., Rowan, S., and Mitrofanov, V.
Subjects:Q Science > QC Physics
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Physics Letters A
ISSN:0375-9601

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