LCGT Project Observing Gravitational Wave Events at 240 Mpc

The large-scale cryogenic gravitational wave telescope (LCGT) project was originally planned in 1998 and was revised in 2002. The design concept of the LCGT was to raise the baseline of TAMA by one order and to decrease the thermal noise of the mirrors by one order by using cryogenics and by locating LCGT at an underground site in Kamioka mine. Two sets of interferometers will be constructed in the same tunnel in order to reject possible fake events.