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Message ID: 129     Entry time: Sun Aug 26 16:42:54 2018
Author: rana 
Type: Mechanics 
Category: Analysis 
Subject: Test Mass Thermal Noise: Consistency Checks 

For the Voyager test masses, we have been considering a barrel coating to increase the IR emissivity to increase the radiative cooling power. We also seek to estimate the added Brownian thermal noise that arises from this.

Dmitry Kopstov (from MSU) made a baseline model for this which we have been modifying. The latest is in the CryogenicLIGO git repo in the FEA directory as ETM_NASAbarrel.mph.

Comparison with Analytic Estimates:

 

Convergence Tests:

 

 

 

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