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The behaviour of Rn-222 decay products at the air-glass interface and its implication for retrospective radon exposure estimates

Roos, Birgitta LU and Samuelsson, Christer LU (2005) 7th International Symposium on the Natural Radiation Environment (NRE-VII) In Natural Radiation Environment VII 7. p.813-819
Abstract
Glass sheets investigated regarding their Po-210 signal originating from indoor radon exposure will have a depth distribution down to about 100 nm. The geometrical probability of implantation into glass of glass-attached radon daughter activity in one alpha recoil event is 50%. A particulate layer on the glass sheet (dust, grease or other particles) will stop the alpha recoil nucleus partly or totally, and the alpha-recoiled Po-210 nucleus will be implanted into the glass surface at a lesser depth. Clean glass sheets were pre-exposed to different types of nonradioactive aerosol particles and then exposed to radon-laden air. After a build-up period, the surface activity of Po-210 was determined by alpha spectrometry. The implanted fraction... (More)
Glass sheets investigated regarding their Po-210 signal originating from indoor radon exposure will have a depth distribution down to about 100 nm. The geometrical probability of implantation into glass of glass-attached radon daughter activity in one alpha recoil event is 50%. A particulate layer on the glass sheet (dust, grease or other particles) will stop the alpha recoil nucleus partly or totally, and the alpha-recoiled Po-210 nucleus will be implanted into the glass surface at a lesser depth. Clean glass sheets were pre-exposed to different types of nonradioactive aerosol particles and then exposed to radon-laden air. After a build-up period, the surface activity of Po-210 was determined by alpha spectrometry. The implanted fraction of (210)po for these sheets of glass, with respect to mass load and type of particulate surface layer, was determined to be between 30 and 80% depending on the mass load (mu g cm(-2)). (Less)
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author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
Natural Radiation Environment VII
volume
7
pages
813 - 819
publisher
Elsevier
conference name
7th International Symposium on the Natural Radiation Environment (NRE-VII)
external identifiers
  • wos:000229424900102
  • scopus:77956688536
ISBN
978-0-08-044137-5
DOI
10.1016/S1569-4860(04)07102-5
language
English
LU publication?
yes
id
1c0177a9-2048-4e22-bb66-e602e106ef31 (old id 1406282)
date added to LUP
2009-07-27 14:56:19
date last changed
2017-07-02 04:42:41
@inproceedings{1c0177a9-2048-4e22-bb66-e602e106ef31,
  abstract     = {Glass sheets investigated regarding their Po-210 signal originating from indoor radon exposure will have a depth distribution down to about 100 nm. The geometrical probability of implantation into glass of glass-attached radon daughter activity in one alpha recoil event is 50%. A particulate layer on the glass sheet (dust, grease or other particles) will stop the alpha recoil nucleus partly or totally, and the alpha-recoiled Po-210 nucleus will be implanted into the glass surface at a lesser depth. Clean glass sheets were pre-exposed to different types of nonradioactive aerosol particles and then exposed to radon-laden air. After a build-up period, the surface activity of Po-210 was determined by alpha spectrometry. The implanted fraction of (210)po for these sheets of glass, with respect to mass load and type of particulate surface layer, was determined to be between 30 and 80% depending on the mass load (mu g cm(-2)).},
  author       = {Roos, Birgitta and Samuelsson, Christer},
  booktitle    = {Natural Radiation Environment VII},
  isbn         = {978-0-08-044137-5},
  language     = {eng},
  pages        = {813--819},
  publisher    = {Elsevier},
  title        = {The behaviour of Rn-222 decay products at the air-glass interface and its implication for retrospective radon exposure estimates},
  url          = {http://dx.doi.org/10.1016/S1569-4860(04)07102-5},
  volume       = {7},
  year         = {2005},
}