arxiv:1111.7185

Detector configuration of KAGRA - the Japanese cryogenic gravitational-wave detector

Published on Nov 30, 2011

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Abstract

KAGRA, a second-generation gravitational-wave detector, uses advanced technologies including underground location, cryogenic cooling, and quantum non-demolition techniques to observe gravitational waves from distant galaxies.

AI-generated summary

Construction of the Japanese second-generation gravitational-wave detector KAGRA has been started. In the next 6 \sim 7 years, we will be able to observe the space-time ripple from faraway galaxies. KAGRA is equipped with the latest advanced technologies. The entire 3-km long detector is located in the underground to be isolated from the seismic motion, the core optics are cooled down to 20 K to reduce thermal fluctuations, and quantum non-demolition techniques are used to decrease quantum noise. In this paper, we introduce the detector configuration of KAGRA; its design, strategy, and downselection of parameters.

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