@Article{FurtadoAguiAlme:2006:PrReDe,
author = "Furtado, S{\'e}rgio Ricardo and Aguiar, Odylio Denys de and
Almeida, Daniel S.",
affiliation = "Instituto Nacional de Pesquisa Espaciais, Divis{\~a}o de
Astrof{\'{\i}}sica (INPE.DAS) and Instituto Nacional de Pesquisa
Espaciais, Divis{\~a}o de Astrof{\'{\i}}sica (INPE.DAS) and
{Centro T{\'e}cnico Aeroespacial}",
title = "Progress report on the development of a very high sensitivity
parametric transducer for the Mario Schenberg Gravitational wave
detector",
journal = "Journal of Physics: Conference Series",
year = "2006",
volume = "32",
number = "1",
pages = "439--444",
abstract = "We have constructed the Mario Schenberg gravitational wave
detector at the Physics Institute of the University of Sao Paulo
as programmed by the Brazilian Graviton Project, under the full
support of FAPESP (the S{\~a}o Paulo State Foundation for
Research Support). We are ready to do a first test run of the
spherical antenna at 4.2K with three parametric transducers and an
initial target sensitivity of h~10-21Hz-½ in a 60Hz bandwidth
around 3.2kHz. The parametric transducers to be used on the Mario
Schenberg detector consist of reentrant klystron copper-aluminum
cavities covered with a thin layer of niobium on the walls and on
the oscillating membrane. The gap between the central conical post
and the membrane is about 40µm. Here we present a progress report
on this transducer development related with niobium layer
deposition in the transducer cavities and on the design of silicon
membranes for the last transducer mechanical mode.",
copyholder = "SID/SCD",
issn = "1742-6588",
language = "en",
targetfile = "Progress report on the development.pdf",
urlaccessdate = "27 abr. 2024"
}