Notes about Noise in Gravitational Wave Antennas Created by Cosmic Rays

Details Notes about Noise in Gravitational Wave Antennas Created by Cosmic Rays Notes about Noise in Gravitational Wave Antennas Created by Cosmic Rays

2005-09-15

arxiv.org/abs/gr-qc/0509058v1

Phys.Lett.A350:1-4,2006

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

9 pages, LaTex

Scientific paper

10.1016/j.physleta.2005.09.073

Thermodynamical fluctuations of temperature in mirrors may produce surface fluctuations not only through thermal expansion in mirror body but also through thermal expansion in mirror coating. We analyze the last "surface" effect which can be larger than the first "volume" one due to larger thermal expansion coefficient of coating material and smaller effective volume. In particular, these fluctuations may be important in laser interferometric gravitational antennae.

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