| Full text | |
| Author(s): |
Furtado, Sergio Ricardo
;
Aguiar, Odylio D.
;
Almeida, Daniel S.
;
Mio, N
Total Authors: 4
|
| Document type: | Journal article |
| Source: | WAKE CONFERENCE 2021; v. 32, p. 6-pg., 2006-01-01. |
| 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 Sao 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 similar to 10(-21)Hz(-1/2) 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 40 mu m. 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. (AU) | |
| FAPESP's process: | 98/13468-9 - The Schenberg detector: proposal for the project, construction, and operation of a 0.6-meter diameter spherical gravitational wave detector |
| Grantee: | Odylio Denys de Aguiar |
| Support Opportunities: | Regular Research Grants |
| FAPESP's process: | 05/51410-8 - The Brazilian gravitational wave detector Mario Schenberg: progress and plans |
| Grantee: | Odylio Denys de Aguiar |
| Support Opportunities: | Research Grants - Meeting - Abroad |