Present status of large-scale cryogenic gravitational wave telescope

Details Present status of large-scale cryogenic gravitational wave telescope Present status of large-scale cryogenic gravitational wave telescope

Mar 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cqgra..21s1161u&link_type=abstract

Classical and Quantum Gravity, Volume 21, Issue 5, pp. S1161-S1172 (2004).

Physics

27

Scientific paper

The large-scale cryogenic gravitational wave telescope (LCGT) is the future project of the Japanese gravitational wave group. Two sets of 3 km arm length laser interferometric gravitational wave detectors will be built in a tunnel of Kamioka mine in Japan. LCGT will detect chirp waves from binary neutron star coalescence at 240 Mpc away with a S/N of 10. The expected number of detectable events in a year is two or three. To achieve the required sensitivity, several advanced techniques will be employed such as a low-frequency vibration-isolation system, a suspension point interferometer, cryogenic mirrors, a resonant side band extraction method, a high-power laser system and so on. We hope that the beginning of the project will be in 2005 and the observations will start in 2009.

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