Dictionary

KAGRA

The Kamioka Gravitational Wave Detector (KAGRA) is an underground Japanese gravitational wave detector, the length of its two arms being 3 km. KAGRA uses cyrogenic technology, which means that the interferometer’s mirrors are cooled down to 20 Kelvin in order to reduce thermal noise. On top of that, the underground construction is expected to reduce seismic noise. The detector has started observation in 2020.