Speaker:
Cedric Cerna
Institution:
Laboratoire des 2 infinis in Bordeaux, France
Date:
Monday, September 26, 2022
Time:
10:30 am
Location:
NS2 1201
Abstract:
The SuperNEMO experiment will study 82Se to look for neutrinoless double beta decays, proof of the Majorana nature of neutrinos. SuperNEMO inherits the tracking-calorimetry technique of the NEMO-3 experiment, allowing for a clear determination of event kinematics, single electrons energy measurement and angles of emission, gamma coïncidence catching, while aiming for an improved background suppression. A demonstrator module is currently starting operation. The double beta emitting source, 7 kg of 82Se in thin foils, is surrounded by a 0.5 meter long helium tracking chamber with 2000 Geiger cells. A 4pi gamma catcher and electron calorimeter, made of plastic scintillators with an energy resolution of 7.8% (FWHM) at 1 MeV, surrounds the tracker. The ultra low radioactivity demonstrator is constructed and installed in the Modane Underground Laboratory in the Frejus Tunnel under the French–Italian Alps.
Host:
J. Pedro Ochoa-Ricoux