18-22 February 2019
Vienna University of Technology
Europe/Vienna timezone

The SuperNEMO Demonstrator double beta experiment

21 Feb 2019, 10:15
20m
EI8 ()

EI8

Talk Dark matter and other low-background experiments Dark matter and other low-background experiments

Speaker

Andrea Jeremie (Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP))

Description

The SuperNEMO experiment will study decays of 82Se in order to look for neutrinoless double beta decays (0νββ), interactions that, if observed, would prove the Majorana nature of neutrinos. SuperNEMO inherits the tracking-calorimetry technology of NEMO-3, which allows for a clear determination of event kinematics, while aiming for an improved background suppression and 0νββ sensitivity. A demonstrator module will start operating in 2019. The double beta emitting source, 7 kg of 82Se, is shaped in thin foils (20 squared meters), and surrounded by a half meter long helium tracking chamber composed of 2000 Geiger cells. A 4 PI gamma catcher and electron calorimeter, made of plastic scintillators with an energy resolution of 7% (FWHM) at 1 MeV, surrounds the whole. The demonstrator is constructed in ultra low radioactivity materials and is installed in the Modane Underground Laboratory in the Frejus Tunnel under the French-Italian Alps.

Primary author

Andrea Jeremie (Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP))

Presentation Materials