A Search for Neutrinoless Double Beta Decay: from NEMO-3 to SuperNEMO

The SuperNEMO project aims to search for neutrinoless double beta decay ($0\nu \beta \beta$) up to a sensitivity of 10${}^{26}$ years for the $0\nu \beta \beta$ half-life (down to $\sim$ 50~meV in the effective Majorana neutrino mass), using $\sim$100 kg of source and a `tracko-calo’ detector. The current status of the 2006–2010 R&D programme is discussed here.