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Recent Improvements on the EXPLORER Gravitational Wave Antenna

  • P. Astone
  • M. Bassan
  • P. Bonifazi
  • P. Carelli
  • M.G. Castellano
  • G. Cavallari
  • E. Coccia
  • C. Cosmelli
  • S. D’Antonio
  • V. Fafone
  • Y. Minenkov
  • G. Modestino
  • I. Modena
  • A. Moleti
  • G. Pizzella
  • G.V. Pallottino
  • R. Terenzi
  • G. Torrioli
  • M. Visco
Conference paper

Abstract

The EXPLORER gravitational wave detector has been recently improved. The antenna has been equipped with a new read-out. The use of a new transducer, characterized by a very small gap, and a dc-Squid with a high coupling, led to a better sensitivity and a larger bandwidth. In the first six months of the year 2000, an effective temperature of 3 mK and a bandwidth of almost 8 Hz were reached. Further improvements are expected. The new experimental configuration appears also very promising for use in the ultra-cryogenic antenna NAUTILUS.

Keywords

Gravitational Wave Effective Temperature Experimental Configuration Gravitational Wave Detector Mechanical Quality Factor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Italia 2002

Authors and Affiliations

  • P. Astone
    • 1
  • M. Bassan
    • 2
    • 3
  • P. Bonifazi
    • 1
    • 4
  • P. Carelli
    • 5
    • 8
  • M.G. Castellano
    • 2
  • G. Cavallari
    • 6
  • E. Coccia
    • 7
    • 9
  • C. Cosmelli
    • 1
    • 7
  • S. D’Antonio
    • 8
  • V. Fafone
    • 8
  • Y. Minenkov
    • 3
    • 9
  • G. Modestino
    • 10
  • I. Modena
    • 10
  • A. Moleti
    • 9
    • 11
  • G. Pizzella
    • 7
    • 10
  • G.V. Pallottino
    • 1
    • 7
  • R. Terenzi
    • 4
    • 9
  • G. Torrioli
    • 6
    • 9
  • M. Visco
    • 4
    • 9
  1. 1.Istituto Nazionale di Fisica NucleareRomaItaly
  2. 2.Dipartimento di Fisica, Università di Roma “Tor Vergata”, and INFNRoma
  3. 3.CNR, Istituto Fisica Spazio InterplanetarioRomaItaly
  4. 4.Consiglio Nazionale delle Ricerche, Istituto di Elettronica dello Stato SolidoRoma
  5. 5.Consiglio Nazionale delle Ricerche, Istituto di Fisica dello Spazio InterplanetarioRoma
  6. 6.CERNGenevaSwitzerland
  7. 7.Dipartimento di Fisica, Università degli Studi di Roma “Tor Vergata”RomaItaly
  8. 8.Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiFrascatiItaly
  9. 9.Istituto Nazionale di Fisica NucleareRomaItaly
  10. 10.INFN, Laboratori Nazionali di FrascatiFrascati, RomaItaly
  11. 11.Dipartimento di Energetica, Universita degli Studi dell’ Aquila, Roio PoggioRomaItaly

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