Speaker
Description
Coherent elastic neutrino nucleus scattering (CEvNS) was first measured experimentally by the COHERENT experiment in 2017 and is currently being studied by many experiments all around the world.
The Ricochet experiment, located at 8.8 m from the reactor core at the Institut Laue-Langevin in Grenoble, aims to measure CEvNS with high precision using germanium cryogenic detectors that simultaneously record ionization and heat signals. This dual-channel readout enables both particle identification, through discrimination between electronic and nuclear recoil, and precise recoil energy reconstruction.
As part of a future upgraded science phase, Ricochet is planning to deploy silicon alongside germanium as a target material to broaden its scientific reach. While silicon offers a lower CEvNS interaction rate compared to germanium, its CEvNS recoil spectrum extends to higher energies, further reducing the impact of the so-called «Low Energy Excess » at the lowest energies. This poster details the first R&D results and preliminary performance analysis of the Ricochet silicon detector prototypes.