Light Output of Plastic Scintillators Fabricated by UV Curing

Plastic scintillators are one of the materials used in radiation measurement and they have some advantages such as fast rise and decay time, high optical transmission, ease of manufacturing. Unlike conventional methods of fabricating plastic scintillators by high temperature polymerization, recent studies have found that scintillators are fabricated by UV polymerization. Six scintillators with different compounding ratios were fabricated by changing the type and concentration of two photoinitiators using a UV curing machine, and their light outputs were compared with a commercial scintillator BC-408. The change of the light output according to the concentration of the photoinitiator was not clearly shown in the study. The estimation of additional characteristics such as linearity and decay time is required for further identification of the performance of the scintillator fabricated by UV curing in the future.