MiniGRAIL, A 65 cm spherical antenna

Details MiniGRAIL, A 65 cm spherical antenna MiniGRAIL, A 65 cm spherical antenna

Jun 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aipc..523..268d&link_type=abstract

GRAVITATIONAL WAVES: Third Edoardo Amaldi Conference. AIP Conference Proceedings, Volume 523, pp. 268-274 (2000).

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Gravitational Wave Detectors And Experiments, Gravitational Radiation Detectors, Mass Spectrometers, And Other Instrumentation And Techniques

Scientific paper

We intend to build a 65 cm diameter spherical, cryogenic gravitational wave antenna made of the CuAl(6%) alloy with a mass of 1168 Kg, a resonance frequency of 3.7 kHz and a bandwidth around 300 Hz. The quantum-limited strain sensitivity δL/L would be 2.2×10-21 at 10 mK. We believe that a sensitivity around 5×10-20 could be reached within the duration of the project, which is (at that frequency) comparable to that of the large interferometers LIGO and VIRGO presently being built. The sources we are aiming at are for instance non-axisymmetric dynamical instabilities of rotating neutron stars within our galaxy, where 108 neutron stars are expected to exist. .

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