Speaker
Description
LiquidO is a novel scintillator based detection concept that achieves intrinsic spatial segmentation through stochastic light confinement in an opaque medium. Scintillation light is strongly scattered within sub millimetre lengths, remaining near its production point and enabling efficient collection by a dense lattice of wavelength shifting fibres coupled to silicon photomultipliers.
This work presents the performance evaluation of a planar LiquidO prototype instrumented with 256 fibres. The detector comprises eight fibre layers arranged in two orthogonal directions with 5 mm pitch, with dual ended readout. Its 1.5 litre active volume is filled with a wax based opaque scintillator featuring a sub millimetre scattering length. Cosmic ray muons traversing the detector generate the characteristic LiquidO “light cylinder,” allowing clear event identification and accurate reconstruction of track position and direction.
Building on earlier results from a 3 cm cube prototype that achieved sub millimetre resolution in one dimension, this detector extends LiquidO imaging studies to three dimensions and larger volumes. The results reported here demonstrate the scalability and robust imaging capabilities of LiquidO, supporting its potential for applications in reactor monitoring, cosmic ray imaging, non proliferation, and astrophysical instrumentation, and contribute to ongoing development within the LiquidO consortium.
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