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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 | Source: | 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 | Keywords: | plant dosimetry; Arabidopsis thaliana; radiological protection; exposure modelling | Document URI: | http://hdl.handle.net/1942/16399 | ISSN: | 0022-5193 | e-ISSN: | 1095-8541 | ISI #: | 000334977300006 | Rights: | © 2014 Elsevier Ltd. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2015 |
Appears in Collections: | Research publications |
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1-s2.0-S0022519314000216-main.pdf | Published version | 1.73 MB | Adobe PDF | View/Open |
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