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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/117028

    Title: Vibration isolation system with a compact damping system for power recycling mirrors of KAGRA
    Authors: Akiyama, Y.;Akutsu, T.;Ando, M.;Arai, K. et al. (Including Liu, G-C.)
    Date: 2019-04-12
    Issue Date: 2019-09-17 12:12:23 (UTC+8)
    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.
    Relation: Classical and Quantum Gravity 36(9), p.095015
    DOI: 10.1088/1361-6382/ab0fcb
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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