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arXiv · 1307.6906

A Simulation of the Optical Attenuation of TPB Coated Light-guide Detectors

B. J. P. Jones
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Abstract

This note describes simple simulations which were performed in order to understand the attenuation behaviors of acrylic light-guides operated in air and argon, which were characterized in \cite{Baptista:2012bf}. Whilst these simulations are only at the level of sophistication of a toy model, they illustrate interesting non-exponential light attenuation effects and the differences between operating light-guide based detectors in argon and air environments. We investigate the effects of surface absorption, surface roughness and wavelength dependence, and use a model tuned on the light-guide attenuation curve measured in air to make a prediction of the light-guide attenuation curve in argon. This curve is compared with data from a liquid argon test stand, and an improvement over a simple exponential model is observed.

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B. J. P. Jones. 2013-07-26. A Simulation of the Optical Attenuation of TPB Coated Light-guide Detectors. https://doi.org/10.1088/1748-0221/8/10/c10015

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