Automatic Alignment system during the second science run of the Virgo interferometer

作者：Accadia T; Acernese F; Antonucci F; Astone P; Ballardin G; Barone F; Barsuglia M; Basti A; Bauer Th S; Beker M G; Belletoile A; Birindelli S; Bitossi M; Bizouard M A; Blom M; Bondu F; Bonelli L; Bonnand R; Boschi V; Bosi L; Bouhou B; Braccini S; Bradaschia C; Brillet A; Brisson V; Budzynski R; Bulik T; Bulten H J; Buskulic D; Buy C; Cagnoli G; Calloni E; Campagna E; Canuel B; Carbognani F; Cavalier F; Cavalieri R

来源：Astroparticle Physics, 2011, 34(6): 327-332.

DOI：10.1016/j.astropartphys.2010.10.005

• Gravitational wave detectors
• Interferometry
• Control systems
• Angular control
• Alignment

In this paper the performances of the Automatic Alignment sensing and control system in the Virgo gravitational wave detector, during the second scientific run from July 7th 2009 to January 8th 2010, are described. The accuracy of the angular control loops fulfills the original Virgo requirements, reaching the accuracy of a few nano-radians for the most critical angular degrees of freedom, and the control noise is below the Virgo design sensitivity in the whole detection band.

• 出版日期2011-1
• 单位中国地震局