Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector

T. Akutsu; M. Ando; K. Arai; Y. Arai; S. Araki; A. Araya; N. Aritomi; H. Asada; Y. Aso; S. Bae; Y. Bae; L. Baiotti; R. Bajpai; M. A. Barton; K. Cannon; Z. Cao; E. Capocasa; M. Chan; C. Chen; K. Chen; Y. Chen; C. Y. Chiang; H. Chu; Y. K. Chu; S. Eguchi; Y. Enomoto; R. Flaminio; Y. Fujii; Y. Fujikawa; M. Fukunaga; M. Fukushima; D. Gao; G. Ge; S. Ha; A. Hagiwara; S. Haino; W. B. Han; K. Hasegawa; R. Hatoya; K. Hattori; H. Hayakawa; K. Hayama; Y. Himemoto; Y. Hiranuma; N. Hirata; E. Hirose; Z. Hong; B. Hsieh; G. Z. Huang; H. Y. Huang; P. Huang; Y. C. Huang; Y. Huang; D. C.Y. Hui; S. Ide; B. Ikenoue; S. Imam; K. Inayoshi; Y. Inoue; K. Ioka; K. Ito; Y. Itoh; K. Izumi; C. Jeon; H. B. Jin; K. Jung; P. Jung; K. Kaihotsu; T. Kajita; M. Kakizaki; M. Kamiizumi; N. Kanda; G. Kang; K. Kawaguchi; N. Kawai; T. Kawasaki; C. Kim; J. Kim; J. C. Kim; W. S. Kim; Y. M. Kim; N. Kimura; N. Kita; H. Kitazawa; Y. Kojima; K. Kokeyama; K. Komori; A. K.H. Kong; K. Kotake; C. Kozakai; R. Kozu; R. Kumar; J. Kume; C. Kuo; H. S. Kuo; Y. Kuromiya; S. Kuroyanagi; K. Kusayanagi; K. Kwak; H. K. Lee; H. W. Lee; R. Lee; M. Leonardi; K. L. Li; L. C.C. Lin; C. Y. Lin; F. K. Lin; F. L. Lin; H. L. Lin; G. C. Liu; L. W. Luo; E. Majorana; M. Marchio; Y. Michimura; N. Mio; O. Miyakawa; A. Miyamoto; Y. Miyazaki; K. Miyo; S. Miyoki; Y. Mori; S. Morisaki; Y. Moriwaki; K. Nagano; S. Nagano; K. Nakamura; H. Nakano; M. Nakano; R. Nakashima; Y. Nakayama; T. Narikawa; L. Naticchioni; R. Negishi; L. Nguyen Quynh; W. T. Ni; A. Nishizawa; S. Nozaki; Y. Obuchi; W. Ogaki; J. J. Oh; K. Oh; S. H. Oh; M. Ohashi; N. Ohishi; M. Ohkawa; H. Ohta; Y. Okutani; K. Okutomi; K. Oohara; C. Ooi; S. Oshino; S. Otabe; K. Pan; H. Pang; A. Parisi; J. Park; F. E. Pea Arellano; I. Pinto; N. Sago; S. Saito; Y. Saito; K. Sakai; Y. Sakai; Y. Sakuno; S. Sato; T. Sato; T. Sawada; T. Sekiguchi; Y. Sekiguchi; L. Shao; S. Shibagaki; R. Shimizu; T. Shimoda; K. Shimode; H. Shinkai; T. Shishido; A. Shoda; K. Somiya; E. J. Son; H. Sotani; R. Sugimoto; J. Suresh; T. Suzuki; T. Suzuki; H. Tagoshi; H. Takahashi; R. Takahashi; A. Takamori; S. Takano; H. Takeda; M. Takeda; H. Tanaka; K. Tanaka; K. Tanaka; T. Tanaka; T. Tanaka; S. Tanioka; E. N. Tapia San Martin; S. Telada; T. Tomaru; Y. Tomigami; T. Tomura; F. Travasso; L. Trozzo; T. Tsang; J. S. Tsao; K. Tsubono; S. Tsuchida; T. Tsutsui; T. Tsuzuki; D. Tuyenbayev; N. Uchikata; T. Uchiyama; A. Ueda; T. Uehara; K. Ueno; G. Ueshima; F. Uraguchi; T. Ushiba; M. H.P.M. Van Putten; H. Vocca; J. Wang; T. Washimi; C. Wu; H. Wu; S. Wu; W. R. Xu; T. Yamada; K. Yamamoto; K. Yamamoto; T. Yamamoto; K. Yamashita; R. Yamazaki; Y. Yang; K. Yokogawa; J. Yokoyama; T. Yokozawa; T. Yoshioka; H. Yuzurihara; S. Zeidler; M. Zhan; H. Zhang; Y. Zhao; Z. H. Zhu

doi:10.1088/1361-6382/abd922

Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector

T. Akutsu, M. Ando, K. Arai, Y. Arai, S. Araki, A. Araya, N. Aritomi, H. Asada, Y. Aso, S. Bae, Y. Bae, L. Baiotti, R. Bajpai, M. A. Barton, K. Cannon, Z. Cao, E. Capocasa, M. Chan, C. Chen, K. ChenY. Chen, C. Y. Chiang, H. Chu, Y. K. Chu, S. Eguchi, Y. Enomoto, R. Flaminio, Y. Fujii, Y. Fujikawa, M. Fukunaga, M. Fukushima, D. Gao, G. Ge, S. Ha, A. Hagiwara, S. Haino, W. B. Han, K. Hasegawa, R. Hatoya, K. Hattori, H. Hayakawa, K. Hayama, Y. Himemoto, Y. Hiranuma, N. Hirata, E. Hirose, Z. Hong, B. Hsieh, G. Z. Huang, H. Y. Huang, P. Huang, Y. C. Huang, Y. Huang, D. C.Y. Hui, S. Ide, B. Ikenoue, S. Imam, K. Inayoshi, Y. Inoue, K. Ioka, K. Ito, Y. Itoh, K. Izumi, C. Jeon, H. B. Jin, K. Jung, P. Jung, K. Kaihotsu, T. Kajita, M. Kakizaki, M. Kamiizumi, N. Kanda, G. Kang, K. Kawaguchi, N. Kawai, T. Kawasaki, C. Kim, J. Kim, J. C. Kim, W. S. Kim, Y. M. Kim, N. Kimura, N. Kita, H. Kitazawa, Y. Kojima, K. Kokeyama, K. Komori, A. K.H. Kong, K. Kotake, C. Kozakai, R. Kozu, R. Kumar, J. Kume, C. Kuo, H. S. Kuo, Y. Kuromiya, S. Kuroyanagi, K. Kusayanagi, K. Kwak, H. K. Lee, H. W. Lee, R. Lee, M. Leonardi, K. L. Li, L. C.C. Lin, C. Y. Lin, F. K. Lin, F. L. Lin, H. L. Lin, G. C. Liu, L. W. Luo, E. Majorana, M. Marchio, Y. Michimura, N. Mio, O. Miyakawa, A. Miyamoto, Y. Miyazaki, K. Miyo, S. Miyoki, Y. Mori, S. Morisaki, Y. Moriwaki, K. Nagano, S. Nagano, K. Nakamura, H. Nakano, M. Nakano, R. Nakashima, Y. Nakayama, T. Narikawa, L. Naticchioni, R. Negishi, L. Nguyen Quynh, W. T. Ni, A. Nishizawa, S. Nozaki, Y. Obuchi, W. Ogaki, J. J. Oh, K. Oh, S. H. Oh, M. Ohashi, N. Ohishi, M. Ohkawa, H. Ohta, Y. Okutani, K. Okutomi, K. Oohara, C. Ooi, S. Oshino, S. Otabe, K. Pan, H. Pang, A. Parisi, J. Park, F. E. Pea Arellano, I. Pinto, N. Sago, S. Saito, Y. Saito, K. Sakai, Y. Sakai, Y. Sakuno, S. Sato, T. Sato, T. Sawada, T. Sekiguchi, Y. Sekiguchi, L. Shao, S. Shibagaki, R. Shimizu, T. Shimoda, K. Shimode, H. Shinkai, T. Shishido, A. Shoda, K. Somiya, E. J. Son, H. Sotani, R. Sugimoto, J. Suresh, T. Suzuki, T. Suzuki, H. Tagoshi, H. Takahashi, R. Takahashi, A. Takamori, S. Takano, H. Takeda, M. Takeda, H. Tanaka, K. Tanaka, K. Tanaka, T. Tanaka, T. Tanaka, S. Tanioka, E. N. Tapia San Martin, S. Telada, T. Tomaru, Y. Tomigami, T. Tomura, F. Travasso, L. Trozzo, T. Tsang, J. S. Tsao, K. Tsubono, S. Tsuchida, T. Tsutsui, T. Tsuzuki, D. Tuyenbayev, N. Uchikata, T. Uchiyama, A. Ueda, T. Uehara, K. Ueno, G. Ueshima, F. Uraguchi, T. Ushiba, M. H.P.M. Van Putten, H. Vocca, J. Wang, T. Washimi, C. Wu, H. Wu, S. Wu, W. R. Xu, T. Yamada, K. Yamamoto, K. Yamamoto, T. Yamamoto, K. Yamashita, R. Yamazaki, Y. Yang, K. Yokogawa, J. Yokoyama, T. Yokozawa, T. Yoshioka, H. Yuzurihara, S. Zeidler, M. Zhan, H. Zhang, Y. Zhao, Z. H. Zhu

Department of Physics

Research output: Contribution to journal › Article › peer-review

7 Scopus citations

Abstract

KAGRA is an underground interferometric gravitational wave detector which is currently being commissioned. This detector relies on high-performance vibration-isolation systems to suspend its key optical components. These suspensions come in four different configurations, of which the type-B is used for the beam splitter and signal recycling mirrors. The type-B suspension comprises the payload, three geometric anti-spring filters for vertical isolation and one inverted pendulum for horizontal isolation. The payload comprises the optic, its marionette and their recoil masses, which hold local displacement sensors and coil magnet actuators used for damping the resonant modes of oscillation of the suspension itself. The beam splitter version has a modified lower section to accommodate a wider optical component. The payload is also equipped with an optical lever, used to monitor and control the position of the suspended optics from the ground. All four suspensions have now been installed in vacuum chambers. We describe the mechanical, electrical and control design, and the measured performance compared to requirements.

Original language	English
Article number	065011
Journal	Classical and Quantum Gravity
Volume	38
Issue number	6
DOIs	https://doi.org/10.1088/1361-6382/abd922
State	Published - 18 Mar 2021

Bibliographical note

Publisher Copyright:
© 2021 IOP Publishing Ltd.

Keywords

Gravitational wave detectors
Gravitational waves
Underground experiments
Vibration isolation

Access to Document

10.1088/1361-6382/abd922

Cite this

Akutsu, T., Ando, M., Arai, K., Arai, Y., Araki, S., Araya, A., Aritomi, N., Asada, H., Aso, Y., Bae, S., Bae, Y., Baiotti, L., Bajpai, R., Barton, M. A., Cannon, K., Cao, Z., Capocasa, E., Chan, M., Chen, C., ... Zhu, Z. H. (2021). Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector. Classical and Quantum Gravity, 38(6), Article 065011. https://doi.org/10.1088/1361-6382/abd922

@article{021b486df7654fce8cce135b08e66831,

title = "Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector",

abstract = "KAGRA is an underground interferometric gravitational wave detector which is currently being commissioned. This detector relies on high-performance vibration-isolation systems to suspend its key optical components. These suspensions come in four different configurations, of which the type-B is used for the beam splitter and signal recycling mirrors. The type-B suspension comprises the payload, three geometric anti-spring filters for vertical isolation and one inverted pendulum for horizontal isolation. The payload comprises the optic, its marionette and their recoil masses, which hold local displacement sensors and coil magnet actuators used for damping the resonant modes of oscillation of the suspension itself. The beam splitter version has a modified lower section to accommodate a wider optical component. The payload is also equipped with an optical lever, used to monitor and control the position of the suspended optics from the ground. All four suspensions have now been installed in vacuum chambers. We describe the mechanical, electrical and control design, and the measured performance compared to requirements.",

keywords = "Gravitational wave detectors, Gravitational waves, Underground experiments, Vibration isolation",

author = "T. Akutsu and M. Ando and K. Arai and Y. Arai and S. Araki and A. Araya and N. Aritomi and H. Asada and Y. Aso and S. Bae and Y. Bae and L. Baiotti and R. Bajpai and Barton, {M. A.} and K. Cannon and Z. Cao and E. Capocasa and M. Chan and C. Chen and K. Chen and Y. Chen and Chiang, {C. Y.} and H. Chu and Chu, {Y. K.} and S. Eguchi and Y. Enomoto and R. Flaminio and Y. Fujii and Y. Fujikawa and M. Fukunaga and M. Fukushima and D. Gao and G. Ge and S. Ha and A. Hagiwara and S. Haino and Han, {W. B.} and K. Hasegawa and R. Hatoya and K. Hattori and H. Hayakawa and K. Hayama and Y. Himemoto and Y. Hiranuma and N. Hirata and E. Hirose and Z. Hong and B. Hsieh and Huang, {G. Z.} and Huang, {H. Y.} and P. Huang and Huang, {Y. C.} and Y. Huang and Hui, {D. C.Y.} and S. Ide and B. Ikenoue and S. Imam and K. Inayoshi and Y. Inoue and K. Ioka and K. Ito and Y. Itoh and K. Izumi and C. Jeon and Jin, {H. B.} and K. Jung and P. Jung and K. Kaihotsu and T. Kajita and M. Kakizaki and M. Kamiizumi and N. Kanda and G. Kang and K. Kawaguchi and N. Kawai and T. Kawasaki and C. Kim and J. Kim and Kim, {J. C.} and Kim, {W. S.} and Kim, {Y. M.} and N. Kimura and N. Kita and H. Kitazawa and Y. Kojima and K. Kokeyama and K. Komori and Kong, {A. K.H.} and K. Kotake and C. Kozakai and R. Kozu and R. Kumar and J. Kume and C. Kuo and Kuo, {H. S.} and Y. Kuromiya and S. Kuroyanagi and K. Kusayanagi and K. Kwak and Lee, {H. K.} and Lee, {H. W.} and R. Lee and M. Leonardi and Li, {K. L.} and Lin, {L. C.C.} and Lin, {C. Y.} and Lin, {F. K.} and Lin, {F. L.} and Lin, {H. L.} and Liu, {G. C.} and Luo, {L. W.} and E. Majorana and M. Marchio and Y. Michimura and N. Mio and O. Miyakawa and A. Miyamoto and Y. Miyazaki and K. Miyo and S. Miyoki and Y. Mori and S. Morisaki and Y. Moriwaki and K. Nagano and S. Nagano and K. Nakamura and H. Nakano and M. Nakano and R. Nakashima and Y. Nakayama and T. Narikawa and L. Naticchioni and R. Negishi and {Nguyen Quynh}, L. and Ni, {W. T.} and A. Nishizawa and S. Nozaki and Y. Obuchi and W. Ogaki and Oh, {J. J.} and K. Oh and Oh, {S. H.} and M. Ohashi and N. Ohishi and M. Ohkawa and H. Ohta and Y. Okutani and K. Okutomi and K. Oohara and C. Ooi and S. Oshino and S. Otabe and K. Pan and H. Pang and A. Parisi and J. Park and {Pea Arellano}, {F. E.} and I. Pinto and N. Sago and S. Saito and Y. Saito and K. Sakai and Y. Sakai and Y. Sakuno and S. Sato and T. Sato and T. Sawada and T. Sekiguchi and Y. Sekiguchi and L. Shao and S. Shibagaki and R. Shimizu and T. Shimoda and K. Shimode and H. Shinkai and T. Shishido and A. Shoda and K. Somiya and Son, {E. J.} and H. Sotani and R. Sugimoto and J. Suresh and T. Suzuki and T. Suzuki and H. Tagoshi and H. Takahashi and R. Takahashi and A. Takamori and S. Takano and H. Takeda and M. Takeda and H. Tanaka and K. Tanaka and K. Tanaka and T. Tanaka and T. Tanaka and S. Tanioka and {Tapia San Martin}, {E. N.} and S. Telada and T. Tomaru and Y. Tomigami and T. Tomura and F. Travasso and L. Trozzo and T. Tsang and Tsao, {J. S.} and K. Tsubono and S. Tsuchida and T. Tsutsui and T. Tsuzuki and D. Tuyenbayev and N. Uchikata and T. Uchiyama and A. Ueda and T. Uehara and K. Ueno and G. Ueshima and F. Uraguchi and T. Ushiba and {Van Putten}, {M. H.P.M.} and H. Vocca and J. Wang and T. Washimi and C. Wu and H. Wu and S. Wu and Xu, {W. R.} and T. Yamada and K. Yamamoto and K. Yamamoto and T. Yamamoto and K. Yamashita and R. Yamazaki and Y. Yang and K. Yokogawa and J. Yokoyama and T. Yokozawa and T. Yoshioka and H. Yuzurihara and S. Zeidler and M. Zhan and H. Zhang and Y. Zhao and Zhu, {Z. H.}",

note = "Publisher Copyright: {\textcopyright} 2021 IOP Publishing Ltd.",

year = "2021",

month = mar,

day = "18",

doi = "10.1088/1361-6382/abd922",

language = "English",

volume = "38",

journal = "Classical and Quantum Gravity",

issn = "0264-9381",

publisher = "IOP Publishing Ltd.",

number = "6",

}

Akutsu, T, Ando, M, Arai, K, Arai, Y, Araki, S, Araya, A, Aritomi, N, Asada, H, Aso, Y, Bae, S, Bae, Y, Baiotti, L, Bajpai, R, Barton, MA, Cannon, K, Cao, Z, Capocasa, E, Chan, M, Chen, C, Chen, K, Chen, Y, Chiang, CY, Chu, H, Chu, YK, Eguchi, S, Enomoto, Y, Flaminio, R, Fujii, Y, Fujikawa, Y, Fukunaga, M, Fukushima, M, Gao, D, Ge, G, Ha, S, Hagiwara, A, Haino, S, Han, WB, Hasegawa, K, Hatoya, R, Hattori, K, Hayakawa, H, Hayama, K, Himemoto, Y, Hiranuma, Y, Hirata, N, Hirose, E, Hong, Z, Hsieh, B, Huang, GZ, Huang, HY, Huang, P, Huang, YC, Huang, Y, Hui, DCY, Ide, S, Ikenoue, B, Imam, S, Inayoshi, K, Inoue, Y, Ioka, K, Ito, K, Itoh, Y, Izumi, K, Jeon, C, Jin, HB, Jung, K, Jung, P, Kaihotsu, K, Kajita, T, Kakizaki, M, Kamiizumi, M, Kanda, N, Kang, G, Kawaguchi, K, Kawai, N, Kawasaki, T, Kim, C, Kim, J, Kim, JC, Kim, WS, Kim, YM, Kimura, N, Kita, N, Kitazawa, H, Kojima, Y, Kokeyama, K, Komori, K, Kong, AKH, Kotake, K, Kozakai, C, Kozu, R, Kumar, R, Kume, J, Kuo, C, Kuo, HS, Kuromiya, Y, Kuroyanagi, S, Kusayanagi, K, Kwak, K, Lee, HK, Lee, HW, Lee, R, Leonardi, M, Li, KL, Lin, LCC, Lin, CY, Lin, FK, Lin, FL, Lin, HL, Liu, GC, Luo, LW, Majorana, E, Marchio, M, Michimura, Y, Mio, N, Miyakawa, O, Miyamoto, A, Miyazaki, Y, Miyo, K, Miyoki, S, Mori, Y, Morisaki, S, Moriwaki, Y, Nagano, K, Nagano, S, Nakamura, K, Nakano, H, Nakano, M, Nakashima, R, Nakayama, Y, Narikawa, T, Naticchioni, L, Negishi, R, Nguyen Quynh, L, Ni, WT, Nishizawa, A, Nozaki, S, Obuchi, Y, Ogaki, W, Oh, JJ, Oh, K, Oh, SH, Ohashi, M, Ohishi, N, Ohkawa, M, Ohta, H, Okutani, Y, Okutomi, K, Oohara, K, Ooi, C, Oshino, S, Otabe, S, Pan, K, Pang, H, Parisi, A, Park, J, Pea Arellano, FE, Pinto, I, Sago, N, Saito, S, Saito, Y, Sakai, K, Sakai, Y, Sakuno, Y, Sato, S, Sato, T, Sawada, T, Sekiguchi, T, Sekiguchi, Y, Shao, L, Shibagaki, S, Shimizu, R, Shimoda, T, Shimode, K, Shinkai, H, Shishido, T, Shoda, A, Somiya, K, Son, EJ, Sotani, H, Sugimoto, R, Suresh, J, Suzuki, T, Suzuki, T, Tagoshi, H, Takahashi, H, Takahashi, R, Takamori, A, Takano, S, Takeda, H, Takeda, M, Tanaka, H, Tanaka, K, Tanaka, K, Tanaka, T, Tanaka, T, Tanioka, S, Tapia San Martin, EN, Telada, S, Tomaru, T, Tomigami, Y, Tomura, T, Travasso, F, Trozzo, L, Tsang, T, Tsao, JS, Tsubono, K, Tsuchida, S, Tsutsui, T, Tsuzuki, T, Tuyenbayev, D, Uchikata, N, Uchiyama, T, Ueda, A, Uehara, T, Ueno, K, Ueshima, G, Uraguchi, F, Ushiba, T, Van Putten, MHPM, Vocca, H, Wang, J, Washimi, T, Wu, C, Wu, H, Wu, S, Xu, WR, Yamada, T, Yamamoto, K, Yamamoto, K, Yamamoto, T, Yamashita, K, Yamazaki, R, Yang, Y, Yokogawa, K, Yokoyama, J, Yokozawa, T, Yoshioka, T, Yuzurihara, H, Zeidler, S, Zhan, M, Zhang, H, Zhao, Y & Zhu, ZH 2021, 'Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector', Classical and Quantum Gravity, vol. 38, no. 6, 065011. https://doi.org/10.1088/1361-6382/abd922

TY - JOUR

T1 - Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector

AU - Akutsu, T.

AU - Ando, M.

AU - Arai, K.

AU - Arai, Y.

AU - Araki, S.

AU - Araya, A.

AU - Aritomi, N.

AU - Asada, H.

AU - Aso, Y.

AU - Bae, S.

AU - Bae, Y.

AU - Baiotti, L.

AU - Bajpai, R.

AU - Barton, M. A.

AU - Cannon, K.

AU - Cao, Z.

AU - Capocasa, E.

AU - Chan, M.

AU - Chen, C.

AU - Chen, K.

AU - Chen, Y.

AU - Chiang, C. Y.

AU - Chu, H.

AU - Chu, Y. K.

AU - Eguchi, S.

AU - Enomoto, Y.

AU - Flaminio, R.

AU - Fujii, Y.

AU - Fujikawa, Y.

AU - Fukunaga, M.

AU - Fukushima, M.

AU - Gao, D.

AU - Ge, G.

AU - Ha, S.

AU - Hagiwara, A.

AU - Haino, S.

AU - Han, W. B.

AU - Hasegawa, K.

AU - Hatoya, R.

AU - Hattori, K.

AU - Hayakawa, H.

AU - Hayama, K.

AU - Himemoto, Y.

AU - Hiranuma, Y.

AU - Hirata, N.

AU - Hirose, E.

AU - Hong, Z.

AU - Hsieh, B.

AU - Huang, G. Z.

AU - Huang, H. Y.

AU - Huang, P.

AU - Huang, Y. C.

AU - Huang, Y.

AU - Hui, D. C.Y.

AU - Ide, S.

AU - Ikenoue, B.

AU - Imam, S.

AU - Inayoshi, K.

AU - Inoue, Y.

AU - Ioka, K.

AU - Ito, K.

AU - Itoh, Y.

AU - Izumi, K.

AU - Jeon, C.

AU - Jin, H. B.

AU - Jung, K.

AU - Jung, P.

AU - Kaihotsu, K.

AU - Kajita, T.

AU - Kakizaki, M.

AU - Kamiizumi, M.

AU - Kanda, N.

AU - Kang, G.

AU - Kawaguchi, K.

AU - Kawai, N.

AU - Kawasaki, T.

AU - Kim, C.

AU - Kim, J.

AU - Kim, J. C.

AU - Kim, W. S.

AU - Kim, Y. M.

AU - Kimura, N.

AU - Kita, N.

AU - Kitazawa, H.

AU - Kojima, Y.

AU - Kokeyama, K.

AU - Komori, K.

AU - Kong, A. K.H.

AU - Kotake, K.

AU - Kozakai, C.

AU - Kozu, R.

AU - Kumar, R.

AU - Kume, J.

AU - Kuo, C.

AU - Kuo, H. S.

AU - Kuromiya, Y.

AU - Kuroyanagi, S.

AU - Kusayanagi, K.

AU - Kwak, K.

AU - Lee, H. K.

AU - Lee, H. W.

AU - Lee, R.

AU - Leonardi, M.

AU - Li, K. L.

AU - Lin, L. C.C.

AU - Lin, C. Y.

AU - Lin, F. K.

AU - Lin, F. L.

AU - Lin, H. L.

AU - Liu, G. C.

AU - Luo, L. W.

AU - Majorana, E.

AU - Marchio, M.

AU - Michimura, Y.

AU - Mio, N.

AU - Miyakawa, O.

AU - Miyamoto, A.

AU - Miyazaki, Y.

AU - Miyo, K.

AU - Miyoki, S.

AU - Mori, Y.

AU - Morisaki, S.

AU - Moriwaki, Y.

AU - Nagano, K.

AU - Nagano, S.

AU - Nakamura, K.

AU - Nakano, H.

AU - Nakano, M.

AU - Nakashima, R.

AU - Nakayama, Y.

AU - Narikawa, T.

AU - Naticchioni, L.

AU - Negishi, R.

AU - Nguyen Quynh, L.

AU - Ni, W. T.

AU - Nishizawa, A.

AU - Nozaki, S.

AU - Obuchi, Y.

AU - Ogaki, W.

AU - Oh, J. J.

AU - Oh, K.

AU - Oh, S. H.

AU - Ohashi, M.

AU - Ohishi, N.

AU - Ohkawa, M.

AU - Ohta, H.

AU - Okutani, Y.

AU - Okutomi, K.

AU - Oohara, K.

AU - Ooi, C.

AU - Oshino, S.

AU - Otabe, S.

AU - Pan, K.

AU - Pang, H.

AU - Parisi, A.

AU - Park, J.

AU - Pea Arellano, F. E.

AU - Pinto, I.

AU - Sago, N.

AU - Saito, S.

AU - Saito, Y.

AU - Sakai, K.

AU - Sakai, Y.

AU - Sakuno, Y.

AU - Sato, S.

AU - Sato, T.

AU - Sawada, T.

AU - Sekiguchi, T.

AU - Sekiguchi, Y.

AU - Shao, L.

AU - Shibagaki, S.

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PY - 2021/3/18

Y1 - 2021/3/18

N2 - KAGRA is an underground interferometric gravitational wave detector which is currently being commissioned. This detector relies on high-performance vibration-isolation systems to suspend its key optical components. These suspensions come in four different configurations, of which the type-B is used for the beam splitter and signal recycling mirrors. The type-B suspension comprises the payload, three geometric anti-spring filters for vertical isolation and one inverted pendulum for horizontal isolation. The payload comprises the optic, its marionette and their recoil masses, which hold local displacement sensors and coil magnet actuators used for damping the resonant modes of oscillation of the suspension itself. The beam splitter version has a modified lower section to accommodate a wider optical component. The payload is also equipped with an optical lever, used to monitor and control the position of the suspended optics from the ground. All four suspensions have now been installed in vacuum chambers. We describe the mechanical, electrical and control design, and the measured performance compared to requirements.

AB - KAGRA is an underground interferometric gravitational wave detector which is currently being commissioned. This detector relies on high-performance vibration-isolation systems to suspend its key optical components. These suspensions come in four different configurations, of which the type-B is used for the beam splitter and signal recycling mirrors. The type-B suspension comprises the payload, three geometric anti-spring filters for vertical isolation and one inverted pendulum for horizontal isolation. The payload comprises the optic, its marionette and their recoil masses, which hold local displacement sensors and coil magnet actuators used for damping the resonant modes of oscillation of the suspension itself. The beam splitter version has a modified lower section to accommodate a wider optical component. The payload is also equipped with an optical lever, used to monitor and control the position of the suspended optics from the ground. All four suspensions have now been installed in vacuum chambers. We describe the mechanical, electrical and control design, and the measured performance compared to requirements.

KW - Gravitational wave detectors

KW - Gravitational waves

KW - Underground experiments

KW - Vibration isolation

UR - http://www.scopus.com/inward/record.url?scp=85102349896&partnerID=8YFLogxK

U2 - 10.1088/1361-6382/abd922

DO - 10.1088/1361-6382/abd922

M3 - Article

AN - SCOPUS:85102349896

SN - 0264-9381

VL - 38

JO - Classical and Quantum Gravity

JF - Classical and Quantum Gravity

IS - 6

M1 - 065011

ER -

Vibration isolation systems for the beam splitter and signal recycling mirrors of the KAGRA gravitational wave detector

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