Ponente
Descripción
The SoLAr detector concept is a novel approach to enhance the liquid argon time projection chambers for neutrino measurements in the O(10) MeV energy range. The primary objective of SoLAr is to study solar neutrino properties, including the ability to identify neutrinos from the "hep-branch" of the proton-proton fusion chain occurring in the Sun.
The SoLAr detector concept integrates both charge and light detection systems onto a single readout plane. Charge detection is accomplished using a pixelated readout system. Light is detected using VUV silicon photomultipliers, which directly measure the scintillation light produced in the liquid argon. The VUV SiPMs are arranged in an array format alongside the charge collection pads. This configuration aims to strike a balance between sufficient pixel coverage and sufficient SiPM coverage for low energy threshold and high spatial resolution for both system concurrently.
In this talk we show results from a first prototype, SoLAr prototype v1, which was built and operated in Bern in October 2022. It collected cosmic data over a timeframe of two days. We also present plans for a second prototype, SoLAr prototype v2 to be operated in summer 2023.
