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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/16399

Title: A dynamic dosimetry model for radioactive exposure scenarios in Arabidopsis thaliana
Authors: BIERMANS, Geert
HOREMANS, Nele
HENS, Niel
VIVES I BATTLE, Jordi
VANDENHOVE, Hildegarde
CUYPERS, Ann
Issue Date: 2014
Citation: JOURNAL OF THEORETICAL BIOLOGY, 347, p. 54-62
Abstract: To obtain a better understanding on how non-human biota are affected by exposure to environmental radioactivity, it is essential to link observed effects to a correct estimate of absorbed ionising radiation dose. Current wildlife dose rate and risk assessment tools are not set up to assess changes in dose rate during organism development. This paper presents a dosimetry model for assessing dose rate and absorbed dose during seedling development of the model plant Arabidopsis thaliana. We included growth and radionuclide absorption dynamics into the dose calculations. This model was subsequently used to compare the dose and dose rate calculations for three radionuclides, 241Am (α-radiation), 90Sr (β-radiation) and 133Ba (γ-radiation), in a standard exposure scenario. We show that growth influences dose and dose rate and that this influence depends on the radionuclide and the organ involved. The use of dynamic dosimetry models greatly improves the dose calculations for effect studies.
Notes: Biermans, G (reprint author),CEN SCK, Boeretang 200, B-2400 Mol, Belgium, geert.biermans@gmail.com
URI: http://hdl.handle.net/1942/16399
ISI #: 000334977300006
ISSN: 0022-5193
Category: A1
Type: Journal Contribution
Validation: ecoom, 2015
Appears in Collections: Research publications

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