Speaker
Description
The RICOCHET experiment located at the research reactor at ILL in Grenoble,
France is a Coherent Elastic Neutrino-Nucleus Scattering (CEνNS) observatory that
aims to detect reactor neutrinos through low-energy nuclear recoils. RICOCHET has
been comissioned and operated at ILL since the first half of 2024 with a small array of
Ge detectors with heat and charge readouts. We focus on the development of the com-
plementary detector array (Q-Array) under active R&D, which uses superconducting
crystals (Zn, Al, and Sn) of around ∼50 grams as the recoil target and Manganese-
doped Al Transition-Edge-Sensors (TESes) for bolometric readout. We present and
discuss the detector data and a corresponding cascade model for particle interactions
in bulk superconductors. The cascade model provides physical insights towards under-
standing the data and achieving Particle identification (PID) for nuclear and electron
recoil events in a bulk superconductor.
