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arXiv · 1811.04874

Performance of Wavelength-Shifting Fibers for the Mu2e Cosmic Ray Veto Detector

E. C. Dukes·P. J. Farris·R. C. Group·T. Lam·D. Shooltz·Y. Oksuzian
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Abstract

The cosmic-ray-veto detector (CRV) for the Mu2e experiment consists of four layers of plastic scintillating counters read out by silicon photo-multipliers (SiPM) through wavelength-shifting fibers. This paper reports the light properties of several wavelength-shifting fiber samples with diameters of 1.0 mm, 1.4 mm, and 1.8 mm that were considered for the CRV system. A fiber diameter of 1.4 mm was selected as optimal for the CRV, and measurements of the prototype and production fiber of this diameter are presented. Fiber performance was found to exceed the CRV requirements for >99% of the spools. The measurements are performed using a scanner designed to ensure the fiber quality for the CRV.

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E. C. Dukes, P. J. Farris, R. C. Group, T. Lam, D. Shooltz, Y. Oksuzian. 2018-11-12. Performance of Wavelength-Shifting Fibers for the Mu2e Cosmic Ray Veto Detector. https://doi.org/10.1088/1748-0221

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