Negative Ion Time Projection Chambers for very rare events searches
by
Elisabetta Baracchini(INFN LNF)
→
Europe/Rome
Aula Conversi (Dip. di Fisica - Edificio G. Marconi)
Aula Conversi
Dip. di Fisica - Edificio G. Marconi
Description
Two of the most compelling questions of fundamental physics today are the nature of Dark Matter and the properties of neutrinos. These topics involve the study of very rare processes and share the same challenging requirements on the simultaneous optimization of the active volume, energy resolution and background rejection capabilities of the detector. I will discuss how a gaseous TPC with negative ion drift can potentially provide the best observables for rare event searches, guaranteeing impressive background rejection and fiducialization capability. I will illustrate the current R&D effort going on in Italy and the most recent results obtained. To conclude, I will show how we plan to put into effect the R&D work done during the recent years in a new project “UNDER: Underground Neutron DEtection through nuclear Recoil”, for a background-free measurement of the fast and thermal neutron flux in Hall B of Laboratori Nazionali del Gran Sasso.
