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Optical Engineering

Low-cost radioactivity monitoring with scintillating fibers and silicon photomultipliers
Author(s): Alfio Domenico Pappalardo; Luigi Cosentino; Carlotta Scirè; Sergio Scirè; Gianfranco Vecchio; Paolo Finocchiaro
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Paper 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 the achievement of a reasonable sensitivity to gamma radiation even though a thin 1-mm-diameter plastic scintillating fiber is used. 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.

Paper Details

Date Published: 7 April 2014
PDF: 9 pages
Opt. Eng. 53(4) 047102 doi: 10.1117/1.OE.53.4.047102
Published in: Optical Engineering Volume 53, Issue 4
Show Author Affiliations
Alfio Domenico Pappalardo, Istituto Nazionale di Fisica Nucleare (Italy)
Luigi Cosentino, Istituto Nazionale di Fisica Nucleare (Italy)
Carlotta Scirè, Istituto Nazionale di Fisica Nucleare (Italy)
Sergio Scirè, Istituto Nazionale di Fisica Nucleare (Italy)
Gianfranco Vecchio, Istituto Nazionale di Fisica Nucleare (Italy)
Paolo Finocchiaro, Istituto Nazionale di Fisica Nucleare (Italy)

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