Computer Science – Performance
Scientific paper
Mar 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cqgra..21s.457a&link_type=abstract
Classical and Quantum Gravity, Volume 21, Issue 5, pp. S457-S463 (2004).
Computer Science
Performance
19
Scientific paper
We are building the Schenberg gravitational wave detector at the Physics Institute of the University of São Paulo as programmed by the Brazilian Graviton Project. The antenna and its vibration isolation system are already built, and we have made a first cryogenic run for an overall test, in which we measured the antenna mechanical Q (figure of merit). We also have built a 10.21 GHz oscillator with phase noise performance better than -120 dBc at 3.2 kHz to pump an initial CuAl6% two-mode transducer. We plan to prepare this spherical antenna for a first operational run at 4.2 K with a single transducer and an initial target sensitivity of h ~ 2 × 10-21 Hz-1/2 in a 50 Hz bandwidth around 3.2 kHz soon. Here we present details of this plan and some recent results of the development of this project.
Aguiar Odylio Denys
Andrade Luiz Alberto
Barroso Jr. J.
Camargo Filho L.
Carneiro L. A.
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