The antenna NAUTILUS is a cylinder of Al5056, it weights 2300 kg, it is 3 m long and it has a diameter of 60 cm. It is cooled at the temperature of 0.1 K by means of a diluition refrigeration system. Its resonance frequencies are around 908 and 924 Hz, for the two modes respectively.
This antenna is located at the L.N.F. (Laboratori Nazionali di Frascati) of I.N.F.N. (Istituto Nazionale di Fisica Nucleare).
This is the presentation by Viviana Fafone at the 15th Sigrav conference, held in Frascati, Sep 2002. It is a general overview of the status and perspectives for resonant detectors:
``Bars and spheres`` ppt file
This is the presentation by Massimo Bassan at the 15th Sigrav conference, held in Frascati, Sep 2002.
``Breaking the bandwidth barrier in resonant g.w. detectors (recipes for a broadband and sensitive antenna)`` ppt file