We describe the present status of a new read-out for the EXPLORER and NAUTILUS gravitational wave detectors. The read-out is based on a double-gap capacitive transducer and a double-SQUID amplifier. The transducer has been tested at liquid helium temperature and a Q of 1.0.106 has been measured with a biasing field of 20 MV/m. The double- SQUID amplifier has been tested down to 2 K with a high-Q resonant input load, showing very good stability and energy resolution, of about 70℠. With the new read-out, NAUTILUS, cooled to 100 mK, could reach a peak sensitivity of 3 . 10 -22Hz-1/2 and a bandwidth, at the level of 10 -21Hz-1/2, of about 35 Hz. © 2006 IOP Publishing Ltd.

Bassan, M., Carelli, P., Fafone, V., Minenkov, Y., Pallottino, G., Rocchi, A., et al. (2006). A new capacitive read-out for EXPLORER and NAUTILUS. In Journal of Physics: Conference Series (pp.89-93) [10.1088/1742-6596/32/1/014].

A new capacitive read-out for EXPLORER and NAUTILUS

BASSAN, MASSIMO;FAFONE, VIVIANA;
2006

Abstract

We describe the present status of a new read-out for the EXPLORER and NAUTILUS gravitational wave detectors. The read-out is based on a double-gap capacitive transducer and a double-SQUID amplifier. The transducer has been tested at liquid helium temperature and a Q of 1.0.106 has been measured with a biasing field of 20 MV/m. The double- SQUID amplifier has been tested down to 2 K with a high-Q resonant input load, showing very good stability and energy resolution, of about 70℠. With the new read-out, NAUTILUS, cooled to 100 mK, could reach a peak sensitivity of 3 . 10 -22Hz-1/2 and a bandwidth, at the level of 10 -21Hz-1/2, of about 35 Hz. © 2006 IOP Publishing Ltd.
Sixth Edoardo Amaldi Conference on Gravitational Waves
Rilevanza internazionale
contributo
Settore FIS/01 - Fisica Sperimentale
English
Intervento a convegno
Bassan, M., Carelli, P., Fafone, V., Minenkov, Y., Pallottino, G., Rocchi, A., et al. (2006). A new capacitive read-out for EXPLORER and NAUTILUS. In Journal of Physics: Conference Series (pp.89-93) [10.1088/1742-6596/32/1/014].
Bassan, M; Carelli, P; Fafone, V; Minenkov, Y; Pallottino, G; Rocchi, A; Sanjust, F; Torrioli, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/34559
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