Radon permeability through nylon at various humidities used in the BOREXINO 
experiment

Wójcik, Marcin; Zuzel, Grzegorz

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Radon permeability through nylon at various humidities used in the BOREXINO experiment

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Zuzel, Grzegorz
Division Prof. Dr. Manfred Lindner, MPI for Nuclear Physics, Max Planck Society;

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Citation

Wójcik, M., & Zuzel, G. (2004). Radon permeability through nylon at various humidities used in the BOREXINO experiment. Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors & Associated Equipment, 524(1-3), 355-365. Retrieved from http://www.sciencedirect.com/science?_ob=ArticleURL&_aset=B-WA-A-W-V-MsSAYZA-UUA-AAUDVVEVVA-AAUCUBUWVA-YBDUVWCED-V-U&_rdoc=2&_fmt=summary&_udi=B6TJM-4BSWJ8R-3&_coverDate=05%2F21%2F2004&_cdi=5314&_orig=search&_st=13&_sort=d&view=c&_acct=C000002578&_version=1&_urlVersion=0&_userid=41881&md5=6bcc757661049f4380cb3ff7f292ebf4.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0011-8C0F-D

Abstract

We have investigated the radon permeation through a nylon film at various humidities. The measurement method and the instrumentation applied, as well as a mathematical model of the Rn-222 diffusion are described. The dependence of the radon diffusion, solubility and permeability coefficients for the nylon film on the relative ambient humidity and the nylon moisture content has been found. No significant change in these parameters was observed as the relative humidity was increased from 0% to 30%. However, in the range from 30% to 100% the radon permeability increases by about two orders of magnitude. In the range from 30% to 60%, which is of particular importance for Borexino, the Rn-222 permeability is about one order of magnitude higher than it is through dry nylon.