A local control system for the test masses of the Virgo gravitational wave detector

F Acernese ,B Perniola ,V Brisson ,H Vocca ,S Kreckelbergh ,C Bradaschia ,José Antonio Freitas Pacheco ,R De Rosa ,F Marion ,G Cella ,F Paoletti ,P Rapagnani ,M A Bizouard ,V Loriette ,G M Guidi ,P Heusse ,I Fiori ,C Palomba ,E Majorana ,J.-Y Vinet ,H Heitmann ,K Qipiani ,V Dattilo ,M Davier ,F Vetrano ,B Mours ,S Frasca ,P La Penna ,A Toncelli ,V Reita ,L Milano ,P Amico ,G Russo ,L Massonnet ,E Cuoco ,R Poggiani ,J.‐M Mackowski ,R Flaminio ,N Arnaud ,F Frasconi ,F Fidecaro ,G Giordano ,L Bracci ,D Verkindt ,R Stanga ,A Viceré ,F Ricci ,Thomas Cokelaer ,L Gammaitoni ,Régis Barille ,A Eleuteri ,F Barone ,H Trinquet ,F Travasso ,P Hello ,A Remillieux ,E Campagna ,F Beauville ,A Pai ,Claude Boccara ,A Brillet ,A Giazotto ,E Tournefier ,D Buskulic ,A Di Virgilio ,L Di Fiore ,M Punturo ,I Ricciardi ,F Moreau ,J.‐P Coulon ,J.-D Fournier ,R Passaquieti ,M Barsuglia ,G Losurdo ,L Bosi ,L Brocco ,D Passuello ,F Bondu ,F Martelli ,P Puppo ,M Varvella ,S Solimeno ,M Tonelli ,S Braccini ,J Ramonet ,N Morgado ,D Babusci ,M Loupias ,O Véziant ,F Cleva ,A Masserot ,D Enard ,F Mornet ,L Pinard ,Julien Moreau ,L Barsotti ,C N Man ,L Holloway ,A Gennai ,F Cavalier ,B Dujardin ,G Calamai ,I Ferrante ,E Calloni ,G Conforto ,Christian Corda ,E Chassande‐Mottin ,M Mazzoni ,M Yvert

doi:10.1016/j.astropartphys.2003.10.001

A local control system for the test masses of the Virgo gravitational wave detector

F Acernese , B Perniola + Show 107 more

https://doi.org/10.1016/j.astropartphys.2003.10.001

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Journal: Astroparticle Physics	Publication Date: Nov 4, 2003
Citations: 24

Affiliation: University of Florence, University of Paris, University of Perugia, University of Pisa, University of Salerno, Laboratoire d'Annecy-le-Vieux de Physique des Particules, Sapienza University of Rome

#Interferometric Detectors #CCD Camera Sensor + Show 8 more

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Abstract

The mirrors of interferometric detectors of gravitational waves (GW) are suspended in order to be isolated from external disturbances. A local control system able to keep them correctly aligned and to damp the angular modes of the suspension is necessary. In this paper we present the solution adopted for Virgo based on a CCD camera sensor and on digital controls. With this solution the mirrors are kept aligned at the level of less than 1 μrad rms, enough to lock the interferometer and start the automatic alignment system.

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