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@InProceedings{AguiarABBBCAEMPFWOOAGCGSMSCLAPFMBFSOMRAFWT:2007:StRe,
               author = "Aguiar, Odylio Denys de and Alves, M{\'a}rcio Eduardo da Silva 
                         and Barroso, Joaquim Jos{\'e} and Bessada, Denis Fernandes Alves 
                         and Brand{\~a}o, Cl{\'a}udio Soriano de Souza and Castro, Pedro 
                         Jos{\'e} de and Araujo, Jos{\'e} Carlos Neves de and 
                         Evangelista, E. F. D. and Miranda, Oswaldo Duarte and Pereira, E. 
                         S. and Furtado, S{\'e}rgio Ricardo and Weber, J. and Oliveira 
                         J{\'u}nior, N. F. and Opher, R. and Abdalla, E. and Golveia dal 
                         Pino, E. M. and Costa, C. A. and Gratens, X. and Souza, S. T. and 
                         Marinho Juniro, R. M. and Stellati, C. and Costa, K. M. F. and 
                         Lenzi, C. H. and Ara{\'u}jo, H. A. B. and Pimentel, G. L. and 
                         Frajuca, C. and Magalh{\~a}es, N. S. and Bortoli, F. S. and 
                         Fauth, A. C. and Saa, A. and Oliveira, S. R. and Marranghello, G. 
                         F. and Rey Neto, E. C. and Andrade, L. A. and Frossati, G. and 
                         Waard, A. de and Tobar, M. E.",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)} and {Instituto Nacional de Pesquisas Espaciais 
                         (INPE)} and {Instituto Nacional de Pesquisas Espaciais (INPE)} and 
                         {Instituto de F{\'{\i}}sica. Universidade de S{\~a}o Paulo 
                         (USP)} and {Instituto de F{\'{\i}}sica. Universidade de S{\~a}o 
                         Paulo (USP)} and {Instituto de F{\'{\i}}sica. Universidade de 
                         S{\~a}o Paulo (USP)} and {Instituto de F{\'{\i}}sica. 
                         Universidade de S{\~a}o Paulo (USP)} and {Instituto de 
                         F{\'{\i}}sica. Universidade de S{\~a}o Paulo (USP)} and 
                         {Instituto de F{\'{\i}}sica. Universidade de S{\~a}o Paulo 
                         (USP)} and {Instituto de F{\'{\i}}sica. Universidade de S{\~a}o 
                         Paulo (USP)} and {Instituto Tecnol{\'o}gico de Aeron{\'a}utica 
                         (ITA)} and {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} 
                         and {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and 
                         {Instituto Tecnol{\'o}gico de Aeron{\'a}utica (ITA)} and {Centro 
                         Federal de Ensino Tecnol{\'o}gico de S{\~a}o Paulo (CEFET)} and 
                         {Centro Federal de Ensino Tecnol{\'o}gico de S{\~a}o Paulo 
                         (CEFET)} and {Centro Federal de Ensino Tecnol{\'o}gico de 
                         S{\~a}o Paulo (CEFET)} and {Instituto F{\'{\i}}sica. 
                         Universidade de Campinas (UNICAMP)} and {Instituto 
                         F{\'{\i}}sica. Universidade de Campinas (UNICAMP)} and 
                         {Instituto F{\'{\i}}sica. Universidade de Campinas (UNICAMP)} 
                         and {Universidade Federal de Pelotas} and FATEC and {Instituto de 
                         Aeron{\'a}utica e Espa{\c{c}}o} and {Leiden University} and 
                         {Leiden University} and {University of Western}",
                title = "The Mario Schenberg Gravitational Wave Detector: status report",
            booktitle = "Anais...",
                 year = "2007",
         organization = "Encontro Nacional de F{\'{\i}}sica das Part{\'{\i}}culas e 
                         Campos, 28.",
             abstract = "The Mario Schenberg gravitational wave detector has started its 
                         commissioning phase at the Physics Institute of the University of 
                         S~ao Paulo, in S~ao Paulo city, in September 2006, under the full 
                         support of FAPESP. We have been testing the three initial 
                         parametric transducer lines in order to prepare the detector for 
                         the next cryogenic run, when it will be calibrated. We also are 
                         developing sapphire oscillators that will replace the ones we have 
                         been using with better performance in phase noise and frequency 
                         stability. We also plan to install eight transducers in a near 
                         future, six of which of the two-mode type and arranged according 
                         to truncated icosahedron con»guration. All these six transducers 
                         will have silicon membranes and superconducting cavities. The 
                         other two transducers, which will be placed close to the sphere 
                         equator, will be mechanically non-resonant. In doing so, we want 
                         to verify if the Schenberg antenna can become a wideband 
                         gravitational wave detector by the use of an ultra-high 
                         sensitivity non-resonant transducer constructed by the recent 
                         achievements of nanotechnology. Since the Stanford pioneering work 
                         of Paik in the 70s, cryogenic resonant-mass gravitational wave 
                         detectors use resonant transducers, which have the e«ect of 
                         increasing both the detector sensitivity and bandwidth. 
                         Nanotechnology is opening new possibilities towards the 
                         construction of ultra-high sensitivity klystron cavity 
                         transducers. It might be feasible to construct TeraHz/micron 
                         parametric transducers in a near future. They would be so 
                         sensitive that there would be no need for multimode resonant 
                         transducers. The resonant-antenna would act as a broadband 
                         detector for gravitational waves. A spherical antenna, such as 
                         Schenberg or Mini-Grail, could add to this quality the advantage 
                         of wave position and polarity determination.",
  conference-location = "{\'A}guas de Lind{\'o}ia, SP",
      conference-year = "24-28 set.",
                label = "self-archiving-INPE-MCTIC-GOV-BR",
        urlaccessdate = "15 jan. 2021"
}


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