We present measurements of the angular distribution of re-emitted light from tetraphenyl butadiene thin films when exposed to \SI{128}{nm} light in vacuum. Films ranging from \SI{250}{nm} to \SI{5.5}{\micron} in thickness are measured. All films were fabricated by evaporation deposition on ultraviolet transmitting (UVT) acrylic substrates. Preliminary comparisons of the angular distribution to that produced by a detailed Monte Carlo model are also presented. The current shortcomings of the model are discussed and future plans briefly outlined.
@article{arxiv.2108.08239,
title = {Measurement of the Angular Distribution of Wavelength-Shifted Light Emitted by TPB},
author = {Jackson Schrott and Michinari Sakai and Samuel Naugle and Gabriel Orebi Gann and Scott Kravitz and Daniel McKinsey and Ryan Smith},
journal= {arXiv preprint arXiv:2108.08239},
year = {2021}
}