Issue |
Europhys. Lett.
Volume 40, Number 6, December II 1997
|
|
---|---|---|
Page(s) | 601 - 606 | |
Section | General | |
DOI | https://doi.org/10.1209/epl/i1997-00510-7 | |
Published online | 01 September 2002 |
Optimization of multipendular seismic suspensions for interferometric gravitational-wave detectors
INFN, Sezione di Napoli and Dipartimento di Scienze Fisiche,
Università degli studi di Napoli "Federico II”,
Mostra d'Oltremare, Pad. 20, 80125 Napoli, Italy
Corresponding author: difiore@na.infn.it
Received:
23
May
1997
Accepted:
6
November
1997
The mirrors of interferometric GW detectors are generally suspended to seismic isolators. The reduction of horizontal vibrations is provided by pendular suspensions while the vertical one is provided by springs. The possibility to extend the detection bandwidth in low frequency has been extensively investigated during last years, and several passive and active isolation systems have been studied. The use of multi-stage suspensions is one of the most promising solutions. The performance of such a system can be improved by changing the masses of the single stages of the suspension chain. We provide an analytical solution which gives the optimum seismic attenuator configuration when the total length and mass of the system are fixed.
PACS: 04.80.Nn – Gravitational wave detectors and experiments / 07.10.Fq – Vibration isolation / 95.55.Ym – Gravitational radiation detectors; mass spectrometers; and other instrumentation and techniques
© EDP Sciences, 1997
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