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

T. Accadia, F. Acernese, F. Antonucci, P. Astone, G. Ballardin, F. Barone, M. Barsuglia, A. Basti, T.S. Bauer, M.G. Beker, A. Belletoile, S. Birindelli, M. Bitossi, M.A. Bizouard, M. Blom, F. Bondu, L. Bonelli, R. Bonnand, V. Boschi, L. BosiB. Bouhou, S. Braccini, C. Bradaschia, A. Brillet, V. Brisson, R. Budzynski, T. Bulik, H.J. Bulten, D. Buskulic, C. Buy, G. Cagnoli, E. Calloni, E. Campagna, B. Canuel, F. Carbognani, F. Cavalier, R. Cavalieri, G. Cella, E. Cesarini, O. Chaibi, E. Chassande-Mottin, A. Chincarini, F. Cleva, E. Coccia, C.N. Colacino, J. Colas, A. Colla, M. Colombini, A. Corsi, J.P. Coulon, S. Hild, J.F.J. van den Brand

Research output: Contribution to journal(Systematic) Review article peer-review


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. (C) 2010 Elsevier B.V. All rights reserved.
Original languageEnglish
Pages (from-to)327-332
Number of pages6
JournalAstroparticle Physics
Issue number6
Publication statusPublished - 1 Jan 2011
Externally publishedYes


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

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