Present status of large-scale cryogenic gravitational wave telescope

T. Uchiyama, K. Kuroda, M. Ohashi, S. Miyoki, H. Ishitsuka, K. Yamamoto, H. Hayakawa, K. Kasahara, M-K. Fujimoto, S. Kawamura, R. Takahashi, T. Yamazaki, K. Arai, D. Tatsumi, A. Ueda, M. Fukushima, S. Sato, Y. Tsunesada, Z-H. Zhu, T. ShintomiA. Yamamoto, T. Suzuki, Y. Saito, T. Haruyama, N. Sato, Y. Higashi, T. Tomaru, K. Tsubono, M. Ando, K. Numata, Y. Aso, K-I. Ueda, H. Yoneda, K. Nakagawa, M. Musha, N. Mio, S. Moriwaki, K. Somiya, A. Araya, A. Takamori, N. Kanda, S. Telada, H. Tagoshi, T. Nakamura, M. Sasaki, T. Tanaka, K-I. Ohara, H. Takahashi, S. Nagano, O. Miyakawa, Michael Tobar

Research output: Contribution to journalArticlepeer-review

52 Citations (Scopus)


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.
Original languageEnglish
Pages (from-to)S1161-S1172
JournalClassical and Quantum Gravity
Issue number5
Publication statusPublished - 2004


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