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Journal Article

Construction of KAGRA: an Underground Gravitational Wave Observatory

MPS-Authors
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Kawazoe,  F.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Khalaidovski,  A.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Miener,  T.
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Fulltext (public)

1712.00148.pdf
(Preprint), 1020KB

ptx180.pdf
(Publisher version), 3MB

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Citation

KAGRA Collaboration, Akutsu, T., Ando, M., Araki, S., Araya, A., Arima, T., et al. (2018). Construction of KAGRA: an Underground Gravitational Wave Observatory. Progress of Theoretical and Experimental Physics, 2018(1): 013F01. doi:10.1093/ptep/ptx180.


Cite as: http://hdl.handle.net/21.11116/0000-0000-7747-B
Abstract
Major construction and initial-phase operation of a second-generation gravitational-wave detector KAGRA has been completed. The entire 3-km detector is installed underground in a mine in order to be isolated from background seismic vibrations on the surface. This allows us to achieve a good sensitivity at low frequencies and high stability of the detector. Bare-bones equipment for the interferometer operation has been installed and the first test run was accomplished in March and April of 2016 with a rather simple configuration. The initial configuration of KAGRA is named {\it iKAGRA}. In this paper, we summarize the construction of KAGRA, including the study of the advantages and challenges of building an underground detector and the operation of the iKAGRA interferometer together with the geophysics interferometer that has been constructed in the same tunnel.