Segmented CdWO4 detector for low background experiments at DUSEL*

We propose to develop a segmented CdWO$_{4}$ scintillator array for detecting geo-neutrinos, neutrinoless double-beta, and dark matter. The detection of geo-neutrinos can shed light on the sources of the terrestrial heat flow, on the present composition, and on the origins of the Earth. The development of a new technique to detect geo-neutrinos through charge current antineutrino capture processes on $^{106}$Cd is very interesting. This target allows us to detect all of geo-neutrinos from uranium, thorium, and potassium decays. When it is built, the detector can be also used to detect neutrinoless double-beta decay with $^{116}$Cd. Both enriched $^{106}$Cd and $^{116}$Cd can be used to search for dark matter from the Universe. This paper will present R$\wp$D results on the energy response of gamma-rays and neutrons from three small CdWO$_{4}$ detectors.