The first phase of the Brazilian graviton project: The Mário Schenberg detector

The construction of a CuAl (94%–6%) 0.6-meter diameter truncated icosahedral gravitational wave antenna is currently being proposed in Brazil. The system is planned to feature a sensitivity better than h=10−21 Hz−1/2 at both (4.10.4) kHz and (7.90.8) kHz bandwiths.