Low-cost radioactivity monitoring with scintillating fibers and silicon photomultipliers

Paolo Finocchiaro; Luigi Cosentino; Alfio Pappalardo; Carlotta Scirè; Sergio Scirè; Gianfranco Vecchio

doi:10.1117/12.2037224

8 March 2014 Low-cost radioactivity monitoring with scintillating fibers and silicon photomultipliers

Paolo Finocchiaro, Luigi Cosentino, Alfio Pappalardo, Carlotta Scirè, Sergio Scirè, Gianfranco Vecchio

Proceedings Volume 8990, Silicon Photonics IX; 899015 (2014) https://doi.org/10.1117/12.2037224
Event: SPIE OPTO, 2014, San Francisco, California, United States

Abstract

A new detector technology was developed, particularly suitable for low-cost radioactivity monitoring in radwaste storage sites. It consists of a scintillating optical fiber coupled at each end to a silicon photomultiplier (SiPM). The single photon sensitivity of the SiPM, along with the left-right coincidence constraint, allows to achieve a reasonable sensitivity to gamma radiation even though using a thin 1mm diameter plastic scintillating fiber. Simulation results are in perfect agreement with the measured behavior, and several implementations are under way. The possibility of choosing the fiber length and shape makes them very flexible both conceptually and mechanically. Any improvement in the SiPM development technology reflects immediately into an improvement in the detector performance.

Citation Download Citation

Paolo Finocchiaro, Luigi Cosentino, Alfio Pappalardo, Carlotta Scirè, Sergio Scirè, and Gianfranco Vecchio "Low-cost radioactivity monitoring with scintillating fibers and silicon photomultipliers", Proc. SPIE 8990, Silicon Photonics IX, 899015 (8 March 2014); https://doi.org/10.1117/12.2037224

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