Author:
Schrott J.,Sakai M.,Naugle S.,Orebi Gann G.D.,Kravitz S.,McKinsey D.,Smith R.J.
Abstract
Abstract
We present measurements of the angular distribution of
re-emitted light from tetraphenyl butadiene thin films when exposed
to 128 nm light, which is the peak of the liquid Argon (LAr)
scintillation spectrum, in vacuum. Films ranging from 250 nm to
5.5 μm 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.
Subject
Mathematical Physics,Instrumentation
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