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Practical test mass and suspension configuration for a cryogenic kilohertz gravitational wave detector

Eichholz, Johannes; Holland, Nathan; Adya, Vaishali; van Heijningen, Joris; Ward, Robert; Slagmolen, Bram; McClelland, David; Ottaway, D J


Designs for future gravitational wave detection facilities feature silicon test masses at cryogenic temperatures to reduce thermal noise and thermally induced aberrations. Designers call for operation at 123 K or close to 18 K to exploit the vanishing thermal expansion of crystalline silicon. The amount of absorbed heat that can be radiatively removed from the test masses is limited at these temperatures, forcing complex cooling scenarios to be considered, including conduction through...[Show more]

CollectionsANU Research Publications
Date published: 2020
Type: Journal article
Source: Physical Review D
DOI: 10.1103/PhysRevD.102.122003
Access Rights: Open Access


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