MEASUREMENT OF EXCESS NOISE IN THE SUSPENSION FIBER FOR A GRAVITATIONAL-WAVE DETECTOR

Authors
AGEEV AY BILENKO IA BRAGINSKY VB VYATCHANIN SP
Citation
Ay. Ageev et al., MEASUREMENT OF EXCESS NOISE IN THE SUSPENSION FIBER FOR A GRAVITATIONAL-WAVE DETECTOR, Physics letters. A, 227(3-4), 1997, pp. 159-164
Citations number
6
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
227
Issue
3-4
Year of publication
1997
Pages
159 - 164
Database
ISI
SICI code
0375-9601(1997)227:3-4<159:MOENIT>2.0.ZU;2-6
Abstract
An new method for the measurement of the mechanical noise in stressed suspension fibers is proposed and realized. Excess noise above the the rmal noise in the fundamental violin mode of thin tungsten wires stres sed to greater than or equal to 20% of the break point is observed. Po ssible mechanisms of the excess noise are discussed and tentative reco mmendations for the design of the suspension of the mirrors in LIGO-ty pe antennae are presented.