| Autor: |
J. Ramonet, Samuele Cortese, L. Milano, H. Vocca, M. Yvert, Teimuraz Lomtadze, D. Passuello, Thierry Pradier, R. Bilhaut, A. Viceré, M. Gaspard, H. Fang, Ph. Heusse, P. Canitrot, N. Arnaud, P. Rapagnani, F. Garufi, R. De Rosa, C. Arnault, J. L. Beney, F. Frasconi, A. Di Virgilio, L. Giacobone, R. Sottile, B. Mansoux, A. Masserot, P. Amico, G. Cella, P. Ganau, Fausto Acernese, R. Flaminio, B. Mours, P. La Penna, M. Leliboux, A. Errico, F. Marion, M. Punturo, M. Varvella, A. Bozzi, C. Girard, B. Caron, V. Loriette, C. N. Man, J. Y. Vinet, L. Pinard, F. Fidecaro, M. Iannarelli, M. Dehamme, L. Holloway, T. Regimbau, P. Dominici, Thomas Cokelaer, F. Bellachia, G. M. Guidi, Angela Delli Paoli, Ciro Cattuto, F. Martelli, C. Bradaschia, Marina Mazzoni, S. Mataguez, F. Paoletti, D. Buskulic, F. Cavalier, J. L. Montorio, J. M. Innocent, Zhenyu Zhang, R. Passaquieti, A. Giazotto, José Pacheco, J. M. Teuler, I. Ferrante, L. Nicolosi, S. Cuzon, C. Michel, G. Ballardin, Sergio Cavaliere, A. Reboux, V. Brisson, H. Heitmann, M. Mencik, S. Braccini, N. Morgado, M. De Rosa, J. P. Roger, R. Hermel, Luisa Bracci, O. Lodygenski, H. Trinquet, F. Chollet, J.-M. Mackowski, F. Cleva, Roberto Cecchi, A. Eleuteri, G. Giordano, C. Bourgoin, J. C. Marrucho, Fabrizio Barone, Ettore Majorana, D. Enard, M. Loupias, D. Dufournaud, E. Jules, E. Turri, P. Puppo, Maurizio Ripepe, Enrico Calloni, M. Davier, P. Tourrenc, G. Calamai, Gianpaolo Evangelista, B. Lieunard, L. Di Fiore, M. Barsuglia, Luca Gammaitoni, G. Losurdo, V. Dattilo, A. Brillet, S. Frasca, M. Taurigna, Alban Remillieux, D. Verkindt, P. Popolizio, L. Massonnet, Fabio Marchesoni, R. Taddei, P. Mugnier, L. Fournier, Patrice Hello, J. Cachenaut, V. Reita, G. Gennaro, François Bondu, P. Rivoirard, M. Perciballi, D. Boget, P. Marin, C. Casciano, C. Eder, L. Fabbroni, Marie-Anne Bizouard, A. Pasqualetti, C. Palomba, F. Ricci, Ketevan Qipiani, E. Cuoco, F. Richard, Claude Boccara, Rosa Poggiani, R. Chiche, F. Vetrano, P. N. Y. David, Salvatore Solimeno, R. Cavalieri, J.-P. Coulon, J.-D. Fournier, D. Babusci, J. C. Lacotte, Ruggero Stanga, J. P. Scheidecker, O. Veziant, B. Lagrange |
| Jazyk: |
angličtina |
| Rok vydání: |
2002 |
| Předmět: |
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| Popis: |
The VIRGO suspensions are chains of passive mechanical filters designed to isolate the interferometer mirrors from seismic noise starting from a few Hz. In order to reduce the low-frequency swing of the mirror along the beam, an active control system, acting at the level of the suspension point, damps the main resonant modes of the system (all below 2.5 Hz). Another control loop, at the level of the optical payload, makes use of a digital camera monitoring the mirror position in all six degrees of freedom. Its main goal is to decrease the rms angular displacements of the mirror, on a time scale of several minutes, down to less than 1 μrad. All the seven suspensions of the VIRGO central interferometer are presently in operation, while the assembly of the last two, for the terminal mirrors, is in progress. The design and performance of the system are described in this paper. PACS number: 0480N (Some figures in this article are in colour only in the electronic version) |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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