Acoustic properties of a hollow sphere for gravitational wave detectors

M Bassan, A DeWaard, G Frossati, S Gianní, Y Minenkov, L Quintieri, R Simonetti
2010 Classical and quantum gravity  
We describe some experimental work on a small prototype of a hollow sphere, aiming at assessing the feasibility of such a resonator as a third generation g.w. resonant detector. We measured the resonant frequencies and quality factors of the spheroidal quadrupolar modes of a welded hollow sphere. The frequencies are found where expected, and the Q values were degraded by 20-60 % with respect to the bulk sphere.
doi:10.1088/0264-9381/27/2/025014 fatcat:43uzrxzzavbl3bubyg4idtfwmu