Below a few tens of hertz interferometric detection of gravitational waves is masked by seismic vibrations of the optical components. In order to isolate the mirrors of the VIRGO interferometer, a sophisticated suspension system, called superattenuator, has been developed. Its working principle is based on a multistage pendulum acting on seismic vibrations as a chain of second order mechanical low-pass filters. A complete superattenuator has been built and tested. This apparatus allows extending the VIRGO detection band down to a few Hz. A detailed description of the attenuation system and its performance are presented in this article.

Acernese, F., Antonucci, F., Aoudia, S., Arun, K.g., Astone, P., Ballardin, G., et al. (2010). Measurements of Superattenuator seismic isolation by Virgo interferometer. ASTROPARTICLE PHYSICS, 33(3), 182-189 [10.1016/j.astropartphys.2010.01.006].

Measurements of Superattenuator seismic isolation by Virgo interferometer

Cuoco E;
2010

Abstract

Below a few tens of hertz interferometric detection of gravitational waves is masked by seismic vibrations of the optical components. In order to isolate the mirrors of the VIRGO interferometer, a sophisticated suspension system, called superattenuator, has been developed. Its working principle is based on a multistage pendulum acting on seismic vibrations as a chain of second order mechanical low-pass filters. A complete superattenuator has been built and tested. This apparatus allows extending the VIRGO detection band down to a few Hz. A detailed description of the attenuation system and its performance are presented in this article.
2010
Acernese, F., Antonucci, F., Aoudia, S., Arun, K.g., Astone, P., Ballardin, G., et al. (2010). Measurements of Superattenuator seismic isolation by Virgo interferometer. ASTROPARTICLE PHYSICS, 33(3), 182-189 [10.1016/j.astropartphys.2010.01.006].
Acernese, F; Antonucci, F; Aoudia, S; Arun, Kg; Astone, P; Ballardin, G; Barone, F; Barsuglie, M; Bauer, Ts; Beker, Mg; Bigotta, S; Birindelli, S; Bit...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11585/998501
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