Each of the two towers of CAOS houses a 12-meter-long Superattenuator, an evolution of the Virgo Superattenuators, consisting of an inverted pendulum, four standard filters, and a special filter for controlling the suspended load.
The increased length of the filter chain will allow for improved performance at low frequencies. Furthermore, one of the two Superattenuators in CAOS is an experimental version designed to eliminate certain blind frequencies identified during the Virgo experience.
At the end of the filter chain, a new suspension system will allow for smoother and more efficient control of the marionette that actuates the mirror’s position.
This 12-meter length coincides with that planned for the highest-performing seismic attenuator in the Einstein Telescope.
