Monte Carlo simulation of a whole-body counter using IGOR phantoms.

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Serval ID
serval:BIB_AE292A0CE0C8
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Monte Carlo simulation of a whole-body counter using IGOR phantoms.
Journal
Radiation Protection Dosimetry
Author(s)
Bochud F.O., Laedermann J.P., Baechler S., Bailat C.J., Boschung M., Aroua A., Mayer S.
ISSN
1742-3406 (Electronic)
ISSN-L
0144-8420
Publication state
Published
Issued date
2014
Peer-reviewed
Oui
Volume
162
Number
3
Pages
280-288
Language
english
Notes
Publication types: Journal Article ; Research Support, Non-U.S. Gov't
Abstract
Whole-body counting is a technique of choice for assessing the intake of gamma-emitting radionuclides. An appropriate calibration is necessary, which is done either by experimental measurement or by Monte Carlo (MC) calculation. The aim of this work was to validate a MC model for calibrating whole-body counters (WBCs) by comparing the results of computations with measurements performed on an anthropomorphic phantom and to investigate the effect of a change in phantom's position on the WBC counting sensitivity. GEANT MC code was used for the calculations, and an IGOR phantom loaded with several types of radionuclides was used for the experimental measurements. The results show a reasonable agreement between measurements and MC computation. A 1-cm error in phantom positioning changes the activity estimation by >2%. Considering that a 5-cm deviation of the positioning of the phantom may occur in a realistic counting scenario, this implies that the uncertainty of the activity measured by a WBC is ∼10-20%.
Pubmed
Web of science
Open Access
Yes
Create date
05/02/2014 13:26
Last modification date
01/10/2019 6:19
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