The recoil factor of 214Pb

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

9 Scopus Citations
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Detail(s)

Original languageEnglish
Pages (from-to)1041-1050
Journal / PublicationJournal of Aerosol Science
Volume35
Issue number8
Publication statusPublished - Aug 2004

Abstract

The majority of the 218Po atoms (the first progeny of radon) are attached to natural aerosols in the air. After their alpha decay, the newly formed nuclei of 214Pb may detach from the carrier aerosol due to recoil. The average fraction of the nuclei detached in this manner is called the "recoil factor". It is an important parameter in the calculation of the radon-progeny concentration and the related radiation dose in lungs. We determine this parameter for eight common aerosol types and show that it cannot be treated as a fixed constant since it varies strongly with the aerosol particle size, shape, material, and surface/volume type of contamination. The range of values that the recoil factor can take broadens with the hygroscopic growth of the aerosol particles, to the maximum range between approximately 0.1 and 0.8. © 2004 Elsevier Ltd. All rights reserved.

Research Area(s)

  • 214Pb, Aerosol, Radon progeny, Recoil

Citation Format(s)

The recoil factor of 214Pb. / Stevanović, N.; Nikezić, D.; Djordjevich, A.
In: Journal of Aerosol Science, Vol. 35, No. 8, 08.2004, p. 1041-1050.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review