A broad energy range wide field monitor for next generation gamma-ray burst experiments

A coded mask instrument based on Silicon Drift Detectors coupled to scintillators operated with a pulse shape discrimination technique is presented as a candidate wide field monitor for forthcoming gamma-ray burst (GRB) search missions. Such an instrument would allow an energy range extended from 1 keV to 1 MeV, in a single compact device, providing both a significant detection efficiency for the softest GRB (X-ray flashes), and the sensitivity to high energy necessary to constrain GRB spectral parameters.