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

Y. Akiyama, T. Akutsu, M. Ando, K. Arai, Y. Arai, S. Araki, A. Araya, N. Aritomi, H. Asada, Y. Aso, S. Bae, L. Baiotti, M. A. Barton, K. Cannon, E. Capocasa, C. S. Chen, T. W. Chiu, K. Cho, Y. K. Chu, K. CraigV. Dattilo, K. Doi, Y. Enomoto, R. Flaminio, Y. Fujii, M. K. Fujimoto, M. Fukunaga, M. Fukushima, T. Furuhata, S. Haino, K. Hasegawa, Y. Hashimoto, K. Hashino, K. Hayama, T. Hirayama, E. Hirose, B. H. Hsieh, C. Z. Huang, B. Ikenoue, Y. Inoue, K. Ioka, Y. Itoh, K. Izumi, T. Kaji, T. Kajita, M. Kakizaki, M. Kamiizumi, S. Kanbara, N. Kanda, S. Kanemura, G. Kang, J. Kasuya, N. Kawai, T. Kawasaki, C. Kim, W. S. Kim, J. Kim, J. C. Kim, N. Kimura, S. Kirii, Y. Kitaoka, H. Kitazawa, Y. Kojima, K. Kokeyama, K. Komori, A. Kong, K. Kotake, R. Kozu, R. Kumar, H. S. Kuo, S. Kuroki, S. Kuroyanagi, H. K. Lee, H. M. Lee, H. W. Lee, M. Leonardi, C. Y. Lin, F. L. Lin, G. C. Liu, M. Marchio, T. Matsui, Y. Michimura, N. Mio, O. Miyakawa, A. Miyamoto, S. Miyoki, W. Morii, S. Morisaki, Y. Moriwaki, M. Musha, S. Nagano, K. Nagano, K. Nakamura, T. Nakamura, H. Nakano, M. Nakano, T. Narikawa, L. Nguyen Quynh, W. T. Ni, A. Nishizawa, Y. Obuchi, J. Oh, S. H. Oh, M. Ohashi, N. Ohishi, M. Ohkawa, K. Okutomi, K. Ono, K. Oohara, C. P. Ooi, S. S. Pan, F. Paoletti, J. Park, R. Passaquieti, F. E. Pena Arellano, N. Sago, S. Saito, Y. Saito, K. Sakai, Y. Sakai, M. Sasai, S. Sato, T. Sato, T. Sekiguchi, Y. Sekiguchi, M. Shibata, T. Shimoda, H. Shinkai, T. Shishido, A. Shoda, N. Someya, K. Somiya, E. J. Son, A. Suemasa, T. Suzuki, T. Suzuki, H. Tagoshi, H. Tahara, H. Takahashi, R. Takahashi, H. Takeda, H. Tanaka, K. Tanaka, T. Tanaka, S. Tanioka, E. N. Tapia San Martin, T. Tomaru, T. Tomura, F. Travasso, K. Tsubono, S. Tsuchida, N. Uchikata, T. Uchiyama, T. Uehara, K. Ueno, F. Uraguchi, T. Ushiba, M. H.P.M. Van Putten, H. Vocca, T. Wakamatsu, Y. Watanabe, W. R. Xu, T. Yamada, K. Yamamoto, K. Yamamoto, S. Yamamoto, T. Yamamoto, K. Yokogawa, J. Yokoyama, T. Yokozawa, T. Yoshioka, H. Yuzurihara, S. Zeidler, Z. H. Zhu

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

A vibration isolation system called the 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.

Original languageEnglish
Article number095015
JournalClassical and Quantum Gravity
Volume36
Issue number9
DOIs
Publication statusPublished - 2019 Apr 12

Keywords

  • KAGRA
  • control
  • gravitational wave detector
  • gravitational waves
  • vibration isolation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Akiyama, Y., Akutsu, T., Ando, M., Arai, K., Arai, Y., Araki, S., Araya, A., Aritomi, N., Asada, H., Aso, Y., Bae, S., Baiotti, L., Barton, M. A., Cannon, K., Capocasa, E., Chen, C. S., Chiu, T. W., Cho, K., Chu, Y. K., ... Zhu, Z. H. (2019). Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA. Classical and Quantum Gravity, 36(9), [095015]. https://doi.org/10.1088/1361-6382/ab0fcb