KAGRA, the underground and cryogenic laser interferometer for gravitational wave detection

The gravitational-wave detector, KAGRA, is unique for its underground site and cryogenic design. The first observation started from 25 th February 2020 with a limited sensitivity of 400 kpc for binary neutron star inspirals for two weeks. From 10 th to 24 th March 2020, the observation is in a brake...

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Bibliographic Details
Published in2020 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR) pp. 1 - 2
Main Author Kokeyama, Keiko
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2020
Subjects
Cryogenics
Detectors
Electrooptical waveguides
Gravitational waves
Lasers and electrooptics
Neutrons
Sensitivity
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Summary:The gravitational-wave detector, KAGRA, is unique for its underground site and cryogenic design. The first observation started from 25 th February 2020 with a limited sensitivity of 400 kpc for binary neutron star inspirals for two weeks. From 10 th to 24 th March 2020, the observation is in a brake for further detector commissioning to attain 1 Mpc sensitivity to join LIGO-VIRGO observation network. This paper reviews the commissioning efforts including the lock acquisition procedure of the KAGRA interferometer.
DOI:10.1364/CLEOPR.2020.C5G_1