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DOE OSTI · 3024265

Characterization and Evaluation of Scintillating Fiber System Components

Tyler, Schuyler·Ocampo Giraldo, Luis A
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Abstract

Idaho National Laboratory is studying long scintillation fibers (SF) in a project called “TRIPWIRE” which aims to verify containment in inaccessible nuclear waste repositories. This system will continuously monitor ionizing radiation, electromagnetic fields, and seismic activity in the vicinity of nuclear waste. Previous experiments have determined a better alternative to long SF is to couple shorter SF to kilometer scale optical fiber (OF) to reach electronics far outside of the repository. Minor signal attenuation from coupling these fibers has been observed using optical spectrometry. This experiment characterized two photomultiplier tubes (PMT) to reduce this loss by matching their spectral response characteristics to the SF’s emission spectrum. The experiment created a comparison between the two PMTs showing results that suggest other characteristics are playing a major role in improving signal attenuation when the SF is coupled to OF.

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Tyler, Schuyler, Ocampo Giraldo, Luis A. 2022-09-30. Characterization and Evaluation of Scintillating Fiber System Components. https://www.osti.gov/biblio/3024265

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