Abramovici, A. and Althouse, W. and Camp, J. and Durance, D. and Giaime, J. A. and Gillespie, A. and Kawamura, S. and Kuhnert, A. and Lyons, T. and Raab, F. J. and Savage, R. L., Jr. and Shoemaker, D. and Sievers, L. and Spero, R. and Vogt, R. and Weiss, R. and Whitcomb, S. and Zucker, M. (1996) Improved sensitivity in a gravitational wave interferometer and implications for LIGO. Physics Letters A, 218 (3-6). pp. 157-163. ISSN 0375-9601. doi:10.1016/0375-9601(96)00377-5. https://resolver.caltech.edu/CaltechAUTHORS:20140109-091703152
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Abstract
Sensitivity enhancements in the laser interferometer gravitational wave observatory (LIGO) project's 40 m interferometer have been achieved through two major instrumental improvements. Improved vibration isolation has reduced the noise due to ground motion. New test masses with less mechanical dissipation were installed to lower the thermal noise associated with mirror vibrations. The minimum interferometer noise (square root of the spectral density of apparent differential displacement) reached 3 x 10^(-19) m/Hz^(1/2) near 450 Hz.
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| Additional Information: | © 1996 Elsevier Science B.V. Received 22 January 1996; revised manuscript received 2 May 1996; accepted for publication 3 May 1996. Communicated by P.R. Holland. We thank the entire LEO team for their help and support in this work, including Barry Barish, Albert Lazzarini, and Gary Sanders for suggestions concerning the manuscript. This work is supported by the National Science Foundation under Cooperative Agreement PHY-9210038. | |||||||||
| Group: | LIGO | |||||||||
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| Subject Keywords: | Interferometry; Gravitational waves; LIGO; Thermal noise; Vibration isolation | |||||||||
| Issue or Number: | 3-6 | |||||||||
| DOI: | 10.1016/0375-9601(96)00377-5 | |||||||||
| Record Number: | CaltechAUTHORS:20140109-091703152 | |||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20140109-091703152 | |||||||||
| Official Citation: | A. Abramovici, W. Althouse, J. Camp, D. Durance, J.A. Giaime, A. Gillespie, S. Kawamura, A. Kuhnert, T. Lyons, F.J. Raab, R.L. Savage Jr., D. Shoemaker, L. Sievers, R. Spero, R. Vogt, R. Weiss, S. Whitcomb, M. Zucker, Improved sensitivity in a gravitational wave interferometer and implications for LIGO, Physics Letters A, Volume 218, Issues 3–6, 5 August 1996, Pages 157-163, ISSN 0375-9601, http://dx.doi.org/10.1016/0375-9601(96)00377-5. (http://www.sciencedirect.com/science/article/pii/0375960196003775) | |||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | |||||||||
| ID Code: | 43286 | |||||||||
| Collection: | CaltechAUTHORS | |||||||||
| Deposited By: | Ruth Sustaita | |||||||||
| Deposited On: | 09 Jan 2014 17:39 | |||||||||
| Last Modified: | 10 Nov 2021 16:35 |
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