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Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA
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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, …
Classical and quantum gravity, 卷.36(9), 頁.95015
09/05/2019
Web of Science ID: WOS:000464457700007

摘要

Astronomy & Astrophysics Physical Sciences Physics Physics, Multidisciplinary Physics, Particles & Fields Quantum Science & Technology Science & Technology
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.

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https://doi.org/10.1088/1361-6382/ab0fcb檢視
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