chapter  9
12 Pages

The Earth-based large interferometer Virgo and the Low Frequency Facility

The principle of the Earth-based interferometer and the parameters of Virgo, the CNRS-INFN antenna under construction in Cascina near Pisa, are presented. The Super-Attenuator (SA), the suspension ad hoc designed for Virgo, and the Low Frequency Facility, the project devoted to study the SA with a sensitivity close to the Virgo one, are shortly described.