The cumulative deposition of the 137Cs fallout in Austria resulting from the passage of the Chernobyl cloud has been investigated by applying correlation dimension and hyperbolic frequency distribution methods.
For the analysis, a total of 1,881 deposition values were used, which were collected by the Federal Environmental Agency of Austria and the Federal Ministry of Health, representing all available measurements of 137Cs in soil made in Austria after the Chernoby accident.
From these data a hyperbolic exponent for the frequency distribution of 4.0 and a set of fractal correlation dimensions, which decrease from 1.426 ± 0.022 (for the whole network) to 0.706 ± 0.047 (for 137Cs values = 100 kBq m-2), were derived, thus confirming that the fallout pattern can be described as a multifractal.
Mots-clés Pascal : Radiocontamination, Retombée radioactive, Autriche, Europe, Césium, Procédé dépôt, Dose cumulée, Impact environnement, Mesure concentration, Analyse quantitative, Tchernobyl, Accident nucléaire
Mots-clés Pascal anglais : Radioactive contamination, Radioactive fall out, Austria, Europe, Cesium, Deposition process, Cumulated dose, Environment impact, Concentration measurement, Quantitative analysis
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 98-0302175
Code Inist : 002A08F03. Création : 27/11/1998.