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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The Schenberg spherical gravitational wave detector: the first commissioning runs

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Aguiar, O. D. [1] ; Andrade, L. A. ; Barroso, J. J. ; Castro, P. J. ; Costa, C. A. [5] ; Souza, S. T. de ; Waard, A. de ; Fauth, A. C. ; Frajuca, C. ; Frossati, G. ; et al.
Total Authors: 11
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[1] Universidade de São Paulo (USP). Instituto de Física. - Brasil
[5] Universidade de São Paulo (USP). Instituto de Física. - Brasil
Total Affiliations: 11
Document type: Journal article
Source: Classical and Quantum Gravity; v. 25, n. 11, p. 0-0, June 2008.
Field of knowledge: Physical Sciences and Mathematics - Physics

Here we present a status report of the first spherical antenna project equipped with a set of parametric transducers for gravitational detection. The Mario Schenberg, as it is called, started its commissioning phase at the Physics Institute of the University of São Paulo, in September 2006, under the full support of FAPESP. We have been testing the three preliminary parametric transducer systems in order to prepare the detector for the next cryogenic run, when it will be calibrated. We are also developing sapphire oscillators that will replace the current ones thereby providing better performance. We also plan to install eight transducers in the near future, six of which are of the two-mode type and arranged according to the truncated icosahedron configuration. The other two, which will be placed close to the sphere equator, will be mechanically non-resonant. In doing so, we want to verify that if the Schenberg antenna can become a wideband gravitational wave detector through the use of an ultra-high sensitivity non-resonant transducer constructed using the recent achievements of nanotechnology. (AU)

FAPESP's process: 05/00214-4 - Operationalization of the data acquisition system of Mario Schenberg gravitational wave detector
Grantee:César Augusto Costa
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 06/56041-3 - New physics from space: gravitational waves
Grantee:Odylio Denys de Aguiar
Support type: Research Projects - Thematic Grants