Author:
Di Marcello V.,Ianni A.,Panella G.
Abstract
Abstract
Radon-free clean rooms are essential for the production and
assembly of components adopted in low-background experiments. In
particular, long-lived radon decay products are often problematic
for rare events searches, such as low energy neutrino interactions,
direct dark matter detection, and neutrinoless double beta decay.
These isotopes can easily deposit onto surfaces exposed to radon,
leading to a residual background that can limit the sensitivity of
experiments. In order to mitigate this background source,
construction of detectors in radon-reduced environments is
essential. In this framework, design and building of
radon-suppressed clean rooms require a deep understanding of the
radon behavior and the different sources of contamination. In the
paper, computation fluid-dynamics (CFD) analyses of the
radon-suppressed clean rooms built for the DarkSide-50 experiment
are reported. The numerical model including the main radon
contributions, such as structural materials, equipment, and
operators activity, provides very promising results in a remarkable
agreement with available experimental data, confirming the validity
of the current modelling approach for future applications.
Subject
Mathematical Physics,Instrumentation
Cited by
2 articles.
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