Speaker
Description
The Arapuca technnology was pioneering in the use of dichroic filters as a light trap component of wide area photon counting devices in large liquid argon detectors for neutrino physics. It is the technology of choice for the SBND and DUNE experiments, and several of the R&D paths being explored for DUNE phase II are based on it as well. This talk will present the concept and initial development of a novel spin-off of the Arapuca concept aimed at the spectral separation of Cherenkov and scintillation photons. The goal is to achieve a class of detectors that is able to separate Cherenkov light from a larger flux of scintillation photons, with a modular, mostly flat design capable of maximizing geometrical efficiency in a real detector that may combine different technologies. Such a design may be used in future hybrid Cherenkov/scintillation detectors aimed at combining improved sensitivity in double beta decay searches and low energy solar neutrinos with high energy beam neutrinos.
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