Measurement of the VIRGO superattenuator performance for seismic noise suppression

Citation
G. Ballardin et al., Measurement of the VIRGO superattenuator performance for seismic noise suppression, REV SCI INS, 72(9), 2001, pp. 3643-3652
Citations number
28
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
REVIEW OF SCIENTIFIC INSTRUMENTS
ISSN journal
0034-6748 → ACNP
Volume
72
Issue
9
Year of publication
2001
Pages
3643 - 3652
Database
ISI
SICI code
0034-6748(200109)72:9<3643:MOTVSP>2.0.ZU;2-Y
Abstract
Below a few tens of hertz interferometric detection of gravitational waves is masked by seismic vibrations of the optical components. In order to isol ate the mirrors of the VIRGO interferometer, a sophisticated suspension sys tem, called superattenuator, has been developed. Its working principle is b ased on a multistage pendulum acting on seismic vibrations as a chain of se cond 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. (C) 2001 American Institute of Physics.