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.

Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA / Akiyama, Y., Akutsu, T., Ando, M., Arai, K., Arai, Y., Araki, S., Araya, A., Aritomi, N., Asada, H., Aso, Y., Bae, S., Baiotti, L., A Barton, M., Cannon, K., Capocasa, E., Chen, C., Chiu, T., Cho, K., Chu, Y., Craig, K., et al.. - In: CLASSICAL AND QUANTUM GRAVITY. - ISSN 0264-9381. - 36:9(2019), p. 095015. [10.1088/1361-6382/ab0fcb]

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

M Leonardi;
2019-01-01

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.
2019
9
Akiyama, Y; Akutsu, T; Ando, M; Arai, K; Arai, Y; Araki, S; Araya, A; Aritomi, N; Asada, H; Aso, Y; Bae, S; Baiotti, L; A Barton, M; Cannon, K; Capoca...espandi
Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA / Akiyama, Y., Akutsu, T., Ando, M., Arai, K., Arai, Y., Araki, S., Araya, A., Aritomi, N., Asada, H., Aso, Y., Bae, S., Baiotti, L., A Barton, M., Cannon, K., Capocasa, E., Chen, C., Chiu, T., Cho, K., Chu, Y., Craig, K., et al.. - In: CLASSICAL AND QUANTUM GRAVITY. - ISSN 0264-9381. - 36:9(2019), p. 095015. [10.1088/1361-6382/ab0fcb]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11572/370429
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