Single crystalline LuAG fibers for homogeneous dual-readout calorimeters

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Abstract

For the next generation of calorimeters, designed to improve the energy resolution of hadrons and jets measurements, there is a need for highly granular detectors requiring peculiar geometries. Heavy inorganic scintillators allow compact homogeneous calorimeter designs with excellent energy resolution and dual-readout abilities. These scintillators are however not usually suited for geometries with a high aspect ratio because of the important losses observed during the light propagation. Elongated single crystals (fibers) of Lutetium Aluminium garnet (LuAG, Lu3Al5O12) were successfully grown with the micropulling-down technique. We present here the results obtained with the recent fiber production and we discuss how the light propagation could be enhanced to reach attenuation lengths in the fibers better than 0.5 m.© CERN 2013.

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Pauwels, K., Dujardin, C., Gundacker, S., Lebbou, K., Lecoq, P., Lucchini, M., … Auffray, E. (2013). Single crystalline LuAG fibers for homogeneous dual-readout calorimeters. Journal of Instrumentation, 8(9). https://doi.org/10.1088/1748-0221/8/09/P09019

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