Speaker
Description
Breaking with the paradigm of detection’s transparency, the LiquidO collaboration introduces a novel approach to particle detection. Invented in 2012 and released at CERN in 2019, LiquidO uses an opaque medium with a short scattering length to stochastically confine light near (within centimetres) where energy is deposited. Light, arising from Cherenkov radiation and, optionally, scintillation, is then trapped by a dense lattice of optical fibres (wavelength-shifting or scintillating), read by fast and efficient single-photon sensors, such as SiPM, and fast electronics to generate static and dynamic topological information. For the first time in the low MeV range, LiquidO enables event-by-event topological discrimination of positrons, electrons, and gamma particles. This powerful imaging capability, which extends easily to higher energies, significantly improves background rejection. LiquidO's innovative design, including the pioneering of an opaque scintillation technology that allows for unprecedented high concentrations of metal dopants, opens up a wide range of new physics capabilities in neutrino sciences and rare decay studies (like ββ and proton decay), as well as other applications in fundamental science and innovation (several ongoing projects). In this presentation, we will highlight the results from our latest prototypes, concluding LiquidO's initial demonstration R&D phase and establishing the core principle of its imaging technology.
| Position | CNRS Scientific Staff. |
|---|---|
| Affiliation | CNRS / Université Paris-Saclay - IJC / LNCA Laboratories |
| Country | France |