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Enhancing Nuclear Safety


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A computational tool based on voxel geometry for dose reconstruction of radiological accident due to external exposure.

Lemosquet A, Clairand I, de Carlan L, Franck D, Aubineau-Lanièce I and Bottollier-Depois JF.. A computational tool based on voxel geometry for dose reconstruction of radiological accident due to external exposure. Radiat Prot Dosimetry 110(1-4) :449-454 (2004).

Document type > *Article de revue

Keywords > dosimetry, Monte Carlo Code, radiological accident

Research Unit > IRSN/DRPH/SDE/LDRI

Authors > BOTTOLLIER-DEPOIS Jean-François, CLAIRAND Isabelle, FRANCK Didier

Publication Date > 01/12/2004

Summary

In the case of overexposure to ionising radiation, estimation of the absorbed dose in the organism is an important indicator for evaluating the biological consequences of this exposure. Physical dosimetry approach is based either on real reconstruction of the accident, using physical phantoms, or on calculation techniques. Tools using Monte Carlo simulations associated with geometric models are very powerful since they offer the possibility to simulate faithfully the victim and the environment for dose calculations in various accidental situations. The work presented here aims at presenting a new computational tool, called SESAME, dedicated to dose reconstruction of radiological accident based on anthropomorphic voxel phantoms built from real medical images of the victim in association with the MCNP Monte Carlo code. The utility was, in first intention, validated for neutrons by experimental means using a physical tissue-equivalent phantom.


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