Blom, M; Beker, M G; Bertolini, A; Brand, J.F.J.vanden; Bulten, H.J.; Hennes, E.; Mul, F.A.; Rabeling, David; Schimmel, A.
In November 2011 a major upgrade of the Virgo gravitational wave detector was started. After these improvements the detector's sensitivity will have increased by an order of magnitude, increasing the expected event rate by 103 compared to its predecessor. Extensive noise studies showed that this improvement can only be accomplished if a number of optical benches, hosting ancillary optics and optical sensors for the alignment of the interferometer, are isolated from seismic ground motion to...[Show more]
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