High-resolution electromagnetic Pb-SCIFI calorimetry: An investigation on fibres and tests with low-energy photons

Presented by S. Bianco
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Abstract

This article reports on studies aimed to characterise the properties of plastic scintillating fibres to be used in head-on, 1:1 Pb-SCIFI calorimetric modules. The effect of glue on the attenuation of the light transported by cladding close to the photomultiplier tube is studied and found to effectively decrease the contribution of cladding light. Pb-SCIFI modules have been assembled and tested on a 20–80 MeV tagged photon beam. Good linearity and energy resolution better than 6% / √E[GeV] were achieved, therefore showing that this technique is suitable for experimentation at ⊼-factories.

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