Issue |
Radioprotection
Volume 34, Number 4, October-December 1999
|
|
---|---|---|
Page(s) | 505 - 519 | |
DOI | https://doi.org/10.1051/radiopro:1999114 | |
Published online | 17 June 2005 |
Connaissance actuelle des sources d'irradiation naturelle
Current knowledge of the natural sources of radiation
Institut de protection et de sûreté nucléaire, IPSN, BP nº 6, 92265 Fontenay-aux-Roses Cedex, France.
Reçu :
19
Septembre
1998
Accepté :
1
Juillet
1998
Révisé :
18
Mai
1999
Nos connaissances sur les sources naturelles de rayonnements ont beaucoup progressé au cours de ces quinze dernières années. Il est aujourd'hui possible d'établir un bilan assez précis des doses qui en résultent en moyenne pour les populations. Il s'avère aujourd'hui que les incertitudes principales entachant les estimations de dose sont dues aux incertitudes des modèles dosimétriques permettant la conversion d'exposition en dose. Le radon est sans doute le radionucléide pour lequel les incertitudes sont les plus grandes, mais il en existe aussi pour les rayonnements cosmiques et les radionucléides ingérés.
Abstract
Current knowledge of the natural sources of radiation. Our knowledge of the natural sources of radiation has been considerably improved since the last fifteen years. Nowadays it is possible to assess precisely the average doses received by individuals. The major uncertainties which are associated to the dose estimates may be attributed to the uncertainties on the exposure-to-dose conversion factors given by the dosimetric models. Radon is certainly the radionuclide for which the uncertainties are the most important, but doses originating from cosmic rays and ingested radionuclides are also difficult to assess.
Key words: radioactivity, natural / radionuclides / dose assessment / uncertainties
© EDP Sciences, 1999
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