Astrophysics (index)


(Kamioka Gravitational Wave Detector, Large Scale Cryogenic Gravitational Wave Telescope, LCGT)
(pair of interferometers to detect gravitational waves)

KAGRA (or Kamioka Gravitational Wave Detector, formerly called the Large Scale Cryogenic Gravitational Wave Telescope or LCGT) is a pair of Gravitational Wave (GW) Interferometers under construction in a mine in Japan. They use cryogenic mirrors to help reduce noise, specifically mirrors made of sapphire, which, along with their suspension mounting, will be at 20 K during operation. They aim for a sensitivity capable of detecting two to three events a year.

Tunnel excavation was complete in 2014 and construction has progressed. Full operation at its target sensitivity is expected in 2018 or 2019.

(observatory,interferometer,NSF,construction,gravitational waves,Japan)