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arXiv · 1502.01772

PMT signal increase using a wavelength shifting paint

K. Allada·Ch. Hurlbut·L. Ou·B. Schmookler·A. Shahinyan·B. Wojtsekhowski
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Abstract

We report a 1.65 times increase of the PMT signal and a simple procedure of application of a new wavelength shifting (WLS) paint for PMTs with non-UV-transparent windows. Samples of four different WLS paints, made from hydrocarbon polymers and organic fluors, were tested on a 5-inch PMT (ET 9390KB) using Cherenkov radiation produced in fused silica disks by $^{106}$Ru electrons on a `table-top' setup. The best performing paint was employed on two different types of 5-inch PMTs (ET 9390KB and XP4572B), installed in atmospheric pressure CO$_2$ gas Cherenkov detectors, and tested using GeV electrons.

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K. Allada, Ch. Hurlbut, L. Ou, B. Schmookler, A. Shahinyan, B. Wojtsekhowski. 2015-02-06. PMT signal increase using a wavelength shifting paint. https://doi.org/10.1016/j.nima.2015.02.012

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