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Radiation Protection Dosimetry Advance Access originally published online on June 27, 2008
Radiation Protection Dosimetry 2008 131(3):374-378; doi:10.1093/rpd/ncn183
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© The Author 2008. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oxfordjournals.org

Experimental evaluation of PCXMC and prepare codes used in conventional radiology

N. Khelassi-Toutaoui1,*, Y. Berkani1, V. Tsapaki2, A. E. K. Toutaoui1, A. Merad1, A. Frahi-Amroun3 and Z. Brahimi1

1 Département de Physique Médicale, Centre de Recherche Nucléaire d'Alger 2, Boulevard Frantz Fanon, B.P. 399, Alger-Gare, Algeria
2 Department of Medical Physics, Konstantopoulio Hospital, Athens, Greece
3 Université des Sciences et Technologie Houari Boumediene, Alger, Algeria

* Corresponding author: nadiakhelassi{at}comena-dz.org

Received April 1, 2008, amended June 1, 2008, accepted June 10, 2008

The objective of this study is to evaluate the precision of dose-calculation computer codes used in our laboratory (PCXMC and PREPARE) for organ dose evaluation. Measurements of entrance and organ dose were performed using ionisation chamber and thermoluminescence dosimetry. To obtain a mean dose of organ, we have used the Rando–Alderson phantom. The results showed that computed and measured doses correlate well (within 28%) in 60% of the samples. The percentage shows that the computed doses correlate with the experimental doses rather well for PCXMC software than PREPARE. Although the two programs are based on the Monte-Carlo method, their calculations differ. PCXMC carries out a simulation of the trajectory of the photon, whereas PREPARE provides interpolated values. Our experimental results are close to the values given by the PCXMC, a program which takes into account the weight, the height of the patient and field dimensions.


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