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Multilayer Stack Method for Precise Measurement of Radon Diffusion Coefficient of Different Materials

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Title Multilayer Stack Method for Precise Measurement of Radon Diffusion Coefficient of Different Materials
 
Creator Kumar, Amit
Parkash, Rajat
Garg, Ajay
Mann, Nisha
Lal, Jawahar
Chauhan, R P
 
Subject Radon diffusion coefficient
waterproofing materials
Multi-layer stack
 
Description 450-454
Radon-resistant materials are of great importance for High Background Radiation Areas. Depending on the radon
diffusion coefficient, waterproofing and radon-resistant materials with thicknesses ranging from a few microns to several
centimeters are used in various parts of the world. The cost of installation of an effective radon mitigation system varied
with material properties, i.e., thickness and diffusion coefficient. The present study is concerned with the measurement of
the radon diffusion coefficient through single and multilayer homogeneous and heterogeneous stacks of various
waterproofing materials. One, two, and three layers of polyethylene, printing paper, mica sheets, PVC sheets, Mylar sheets
and aluminum foil of varying thicknesses are tested for determination of diffusion length by the two-chamber method and
the active scintillation radon monitor. The radon diffusion coefficient of materials varies from 10-13m2/s to 10-8m2/s for PVC
sheet to paper sheet when a single layer is used and 10-11 m2/s to 10-13 m2/s for aluminum and polyethylene sheets in multilayer
stack arrangement. The radon diffusion coefficient for most of the materials reduces with increasing layers in the stack.
By the use of these materials, 85-90 % of radon can be reduced by using single or multi-layer stack combination.
 
Date 2023-06-22T11:17:02Z
2023-06-22T11:17:02Z
2023-06
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/62076
https://doi.org/10.56042/ijpap.v61i6.2416
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJPAP Vol.61(06) [June 2023]