title: New method and installation for rapid determination of radon diffusion coefficient in various materials.
abstract: The mathematical apparatus and the experimental installation for the rapid determination of radon diffusion coefficient in various materials are developed. The single test lasts not longer than 18 h and allows testing numerous materials, such as gaseous and liquid media, as well as soil, concrete and radon-proof membranes, in which diffusion coefficient of radon may vary in an extremely wide range, from 1·10(-12) to 5·10(-5) m(2)/s. The uncertainty of radon diffusion coefficient estimation depends on the permeability of the sample and varies from about 5% (for the most permeable materials) to 40% (for less permeable materials, such as radon-proof membranes).
authors.affiliation: Laboratory of Radiation Safety in Building, Research Institute of Building Physics, Russian Academy of Architecture and Building Science (NIISF RAABS), Moscow, Russia.
authors.forename: Andrey
authors.initials: A
authors.lastname: Tsapalov
authors.affiliation: Laboratory of Radiation Safety in Building, Research Institute of Building Physics, Russian Academy of Architecture and Building Science (NIISF RAABS), Moscow, Russia.
authors.forename: Loren
authors.initials: L
authors.lastname: Gulabyants
authors.affiliation: Laboratory of Radiation Safety in Building, Research Institute of Building Physics, Russian Academy of Architecture and Building Science (NIISF RAABS), Moscow, Russia.
authors.forename: Mihail
authors.initials: M
authors.lastname: Livshits
authors.affiliation: Faculty of Civil and Environmental Engineering, Technion - Israel Institute of Technology, 32000 Haifa, Israel. Electronic address: kovler@gmail.com.
authors.forename: Konstantin
authors.initials: K
authors.lastname: Kovler
mesh_terms: D000396:Air Pollutants, Radioactive / Q000032:analysis*; D016902:Air Pollution, Indoor / Q000032:analysis*; D003252:Construction Materials / Q000032:analysis*; D004058:Diffusion; D008962:Models, Theoretical; D011834:Radiation Monitoring / Q000295:instrumentation / Q000379:methods*; D011886:Radon / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis*
chemical_list: D000396:Air Pollutants, Radioactive; D012989:Soil Pollutants; D011886:Radon
keywords: Building materials; Calculation; Diffusion coefficient; Measurements; Radon; Radon-proof membranes