Overview of KAGRA : (1) Detector design and construction history

Document #:

JGW-P2011614-v5

Document type:

P

Submitted by:

Kentaro Somiya

Updated by:

Kentaro Somiya

Document Created:

15 Apr 2020, 15:26

Contents Revised:

03 Jul 2020, 10:40

DB Info Revised:

18 Sep 2022, 19:35

Abstract:

KAGRA is a newly built gravitational wave observatory, a laser interferometer with 3~km arms, located in Kamioka, Gifu, Japan. KAGRA is constructed in the underground and is operated with cryogenic mirrors in order to reduce seismic and thermal noises, respectively. Both technologies are expected to show a future direction of gravitational-wave detectors. In 2019, KAGRA finished all the installations with designed configuration, which we call the baseline KAGRA. In this occasion, we overview the baseline KAGRA from various viewpoints as the series of articles. In this article, we introduce the design configurations of KAGRA, with its historical background.

Files in Document:

• PTEP01_design200703.pdf (2.2 MB)

Topics:

• Activity:KAGRA
• Management:Paper

Authors:

• Yuta Michimura
• Kentaro Somiya
• Kazuhiro Yamamoto

Referenced by:

• JGW-T2011662: Summary of Sensitivity Estimate for O4 in Various Interferometer Configurations
• JGW-G2011933: PTEP status: Overview of KAGRA : Future plans
• JGW-T2113287: Estimating the sensitivity for KAGRA in O4a
• JGW-T2113529: KAGRA Sensitivity for Observation Scenario Paper 2021 (Towards O4a and O4b)