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This project is focused on the development of a novel strategy for theprecise measurement of beta decay energy spectra. The exact determination ofbeta spectra has wide implications in the particle and nuclear physics fields:from sterile neutrino searches \cite{Adhikari 2016} to validation of nuclearmodels of interest for double beta decay searches \cite{Suhonen 2017}, toreactor neutrino experiments. The experimental strategy is focused on themitigation of the systematic uncertainty in the determination of the spectralshape related to the energy response of the detector. The plan is to useSilicon Drift Detectors (SDDs), exploiting their excellent energy resolutionand response uniformity, the thin dead layer and the fast signal that allowshigh rate operations. A complete modeling of SDDs response to the interactionof beta particles via numerical simulations, validated with dedicatedmeasurements, aims at identifying and canceling the detector-relatedsystematics. Similar attention will be devoted to the integration of betaradioactive sources that preserve the energy information carried by the emittedelectrons, and to a veto system with a full solid angle coverage to interceptany escaping particle potentially carrying a fraction of the original electronenergy.

A novel application of solid state detectors for high precision, low  systematics measurement of beta decay energy spectra of interest for neutrino  and nuclear physics