Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA

A vibration isolation system called Type-Bp system used for power recycling mirrors has been developed for KAGRA, the interferometric gravitational-wave observatory in Japan. A suspension of the Type-Bp system passively isolates an optic from seismic vibration using three main pendulum stages equipp...

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Bibliographic Details
Published in:arXiv.org 2019-01
Main Authors: Akiyama, Y, Araki, S, Bae, S, Cannon, K, C-S, Chen, T-W Chiu, Y-K, Chu, Craig, K, Doi, K, Flaminio, R, Fujii, Y, Fukunaga, M, Furuhata, T, Hashino, K, Hayama, K, Hirayama, T, Ikenoue, B, Izumi, K, Kaji, T, Kajita, T, Kamiizumi, M, Kanbara, S, Kanemura, S, Kasuya, J, Kim, C, Kim, J, Kimura, N, Kirii, S, Kitaoka, Y, Kitazawa, H, Kokeyama, K, Kotake, K, Kozu, R, Kumar, R, Kuroki, S, Kuroyanagi, S, Lee, H K, Lee, H M, Leonardi, M, F-L, Lin, Liu, G C, Miyamoto, A, Miyoki, S, Morii, W, Morisaki, S, Nakano, H, L Nguyen Quynh, Nishizawa, A, Obuchi, Y, Oh, S H, Ohashi, M, Ohkawa, M, Okutomi, K, Oohara, K, S-S, Pan, Paoletti, F, Park, J, Peña Arellano, F E, Sago, N, Saito, S, Sakai, K, Sato, T, Sekiguchi, T, Shibata, M, Shimoda, T, Shoda, A, Someya, N, Suemasa, A, Suzuki, T, Tagoshi, H, Tahara, H, Takahashi, H, Takahashi, R, Takeda, H, Tanaka, H, Tanaka, K, Tanioka, S, Tapia SanMartin, E N, Tomaru, T, Tomura, T, Tsubono, K, Tsuchida, S, Uchikata, N, Uchiyama, T, Ueno, K, Uraguchi, F, Ushiba, T, M H P M van Putten, Watanabe, Y, W-R, Xu, Yamada, T, Yamamoto, K, Yamamoto, T, Yokogawa, K, Yokozawa, T, Yoshioka, T, Yuzurihara, H, Zeidler, S, Z -H Zhu, Collaboration, KAGRA
Format: Article
Language:English
Subjects:
Damping
Gravitational waves
Isolation systems
Recycling
School buildings
Seismic isolation
Static electricity
Vibration
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Summary:A vibration isolation system called Type-Bp system used for power recycling mirrors has been developed for KAGRA, the interferometric gravitational-wave observatory in Japan. A suspension of the Type-Bp system passively isolates an optic from seismic vibration using three main pendulum stages equipped with two vertical vibration isolation systems. A compact reaction mass around each of the main stages allows for achieving sufficient damping performance with a simple feedback as well as vibration isolation ratio. Three Type-Bp systems were installed in KAGRA, and were proved to satisfy the requirements on the damping performance, and also on estimated residual displacement of the optics.
ISSN:2331-8422
DOI:10.48550/arxiv.1901.03053