Spherical Gravitational Wave Detectors:. Quality Factor and Cooling of a Small CuAl 6% Sample

Details Spherical Gravitational Wave Detectors:. Quality Factor and Cooling of a Small CuAl 6% Sample Spherical Gravitational Wave Detectors:. Quality Factor and Cooling of a Small CuAl 6% Sample

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002nmgm.meet.1899d&link_type=abstract

"THE NINTH MARCEL GROSSMANN MEETING On Recent Developments in Theoretical and Experimental General Relativity, Gravitation and R

Physics

Scientific paper

A brief overview is given of the properties of spherical cryogenic antennae with special attention to small spheres operating at kHz frequencies including our MiniGRAIL project. MiniGRAIL is a 65 cm diameter spherical antenna made of CuAl 6% with a resonant frequency of about 3 kHz and a sensitivity comparable to that of the advanced LIGO at that frequency. New results are given on the measurements of the mechanical quality factor of a 16 cm diameter spherical sample of pure CuAl 6% and on rapid cooling of a small CuAl 6% sample using a forced helium flow.

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