학술논문
Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA
Document Type
Working Paper
Author
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.; Craig, K.; Dattilo, V.; Doi, K.; Enomoto, Y.; Flaminio, R.; Fujii, Y.; Fujimoto, M. -K.; Fukunaga, M.; Fukushima, M.; Furuhata, T.; Haino, S.; Hasegawa, K.; Hashimoto, Y.; Hashino, K.; Hayama, K.; Hirayama, T.; Hirose, E.; Hsieh, B. H.; Huang, C-Z.; Ikenoue, B.; Inoue, Y.; Ioka, K.; Itoh, Y.; Izumi, K.; Kaji, T.; Kajita, T.; Kakizaki, M.; Kamiizumi, M.; Kanbara, S.; Kanda, N.; Kanemura, S.; Kang, G.; Kasuya, J.; Kawai, N.; Kawasaki, T.; Kim, C.; Kim, W. S.; Kim, J.; Kim, J. C.; Kimura, N.; Kirii, S.; Kitaoka, Y.; Kitazawa, H.; Kojima, Y.; Kokeyama, K.; Komori, K.; Kong, A.; Kotake, K.; Kozu, R.; Kumar, R.; Kuo, H-S.; Kuroki, S.; Kuroyanagi, S.; Lee, H. K.; Lee, H. M.; Lee, H. W.; Leonardi, M.; Lin, C-Y.; Lin, F-L.; Liu, G. C.; Marchio, M.; Matsui, T.; Michimura, Y.; Mio, N.; Miyakawa, O.; Miyamoto, A.; Miyoki, S.; Morii, W.; Morisaki, S.; Moriwaki, Y.; Musha, M.; Nagano, S.; Nagano, K.; Nakamura, K.; Nakamura, T.; Nakano, H.; Nakano, M.; Narikawa, T.; Quynh, L. Nguyen; Ni, W. -T.; Nishizawa, A.; Obuchi, Y.; Oh, J.; Oh, S. H.; Ohashi, M.; Ohishi, N.; Ohkawa, M.; Okutomi, K.; Ono, K.; Oohara, K.; Ooi, C. P.; Pan, S-S.; Paoletti, F.; Park, J.; Passaquieti, R.; Arellano, F. E. Peña; Sago, N.; Saito, S.; Saito, Y.; Sakai, K.; Sakai, Y.; Sasai, M.; Sato, S.; Sato, T.; Sekiguchi, T.; Sekiguchi, Y.; Shibata, M.; Shimoda, T.; Shinkai, H.; Shishido, T.; Shoda, A.; Someya, N.; Somiya, K.; Son, E. J.; Suemasa, A.; Suzuki, T.; Tagoshi, H.; Tahara, H.; Takahashi, H.; Takahashi, R.; Takeda, H.; Tanaka, H.; Tanaka, K.; Tanaka, T.; Tanioka, S.; SanMartin, E. N. Tapia; Tomaru, T.; Tomura, T.; Travasso, F.; Tsubono, K.; Tsuchida, S.; Uchikata, N.; Uchiyama, T.; Uehara, T.; Ueno, K.; Uraguchi, F.; Ushiba, T.; van Putten, M. H. P. M.; Vocca, H.; Wakamatsu, T.; Watanabe, Y.; Xu, W-R.; Yamada, T.; Yamamoto, K.; Yamamoto, S.; Yamamoto, T.; Yokogawa, K.; Yokoyama, J.; Yokozawa, T.; Yoshioka, T.; Yuzurihara, H.; Zeidler, S.; Zhu, Z. -H.
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Subject
Language
Abstract
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.