Low-frequency internal friction in clamped-free thin wires

被引:65
作者
Cagnoli, G [1 ]
Gammaitoni, L
Kovalik, J
Marchesoni, F
Punturo, M
机构
[1] Ist Nazl Fis Nucl, Sezione Perugia, Virgo Project, I-06100 Perugia, Italy
[2] Univ Perugia, Dipartimento Fis, I-06100 Perugia, Italy
[3] Univ Camerino, Ist Nazl Fis Mat, I-62032 Camerino, Italy
关键词
D O I
10.1016/S0375-9601(99)00184-X
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We present a series of internal friction measurements for the normal modes of circular fibres made of different materials, that can suspend the test masses of an interferometric gravity wave detector. For metallic wires,the frequency independent loss angle ranges between 10(-3) and 10(-4). The losses in fused silica are two orders of magnitude lower than those in metals. (C) 1999 Published by Elsevier Science B.V. All rights reserved.
引用
收藏
页码:230 / 235
页数:6
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