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Low-frequency internal friction in clamped-free thin wires

✍ Scribed by G Cagnoli; L Gammaitoni; J Kovalik; F Marchesoni; M Punturo

Publisher
Elsevier Science
Year
1999
Tongue
English
Weight
134 KB
Volume
255
Category
Article
ISSN
0375-9601

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✦ Synopsis

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 y3 and 10 y4 . The losses in fused silica are two orders of magnitude lower than those in metals.

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