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La Recherchev2

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New method of voxel phantom creation: application for whole-body counting calibration and perspectives in individual internal dose assessment


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Titre de la revue : Radiation Protection Dosimetry Volume : 116 N° : 1-4 Pagination : 160-164 Date de publication : 01/12/2005

Type de document > *Article de revue

Mots clés >

Unité de recherche > IRSN/DRPH/SDI/LEDI

Auteurs > BLANCHARDON Eric, DE CARLAN Loïc, FRANCK Didier, ROCH Patrice

Date de publication > 01/12/2005

Résumé

The purpose of this work is to present an innovative approach for the creation and application of voxel phantoms associated with the Monte Carlo calculation (MCNP) for the calibration of whole-body counting systems dedicated to the measurement of fission and activation products. The new method is based on a graphical user interface called ‘OEDIPE' that allows to simulate a whole measurement process using all measurement parameters, the final goal being to approach a numerical calibration of the facilities. The creation of voxel phantoms and validation of the method are presented in this paper using the IGOR phantom. Finally, the efficiency of the method is discussed, in particular, with the perspective of validating IGOR as a suitable human-equivalent phantom and for the assessment of uncertainties in dose estimation due to the inhomogeneous distribution of activity in the body, correlated to the bio-kinetic behaviour of the radionuclides.