Proton and electron induced damage processes in organic scintillating fibres

Abstract

Scintillating organic fibres were irradiated in a short region (1 cm length) with 70 MeV protons or 2.0 MeV electrons under time-compressed conditions. The damage process of scintillating properties was studied in-situ during the irradiation using two spectrometers. It was found that the dyes recover partially during the irradiation and nearly complete within a few days. The in-situ observed data are quite different from long-term radiation effects.