Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapy

In this work we present results of relative dose rate along central and lateral axis of the 106Ru/106Rh COC model plaque used for the treatment of tumors close to the optical nerve. The calculations were based on the beta-point dose function and are compared with an available data obtained by means...

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Main Author: Eduardo De Paiva
Format: Article
Language:English
Published: Brazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR) 2020-03-01
Series:Brazilian Journal of Radiation Sciences
Subjects:
Online Access:https://bjrs.org.br/revista/index.php/REVISTA/article/view/1125
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author Eduardo De Paiva
author_facet Eduardo De Paiva
author_sort Eduardo De Paiva
collection DOAJ
description In this work we present results of relative dose rate along central and lateral axis of the 106Ru/106Rh COC model plaque used for the treatment of tumors close to the optical nerve. The calculations were based on the beta-point dose function and are compared with an available data obtained by means of Monte Carlo simulations. Even with the limitations of the method, it was capable to reproduce the general trend of the dose rates around this kind of plaque and a maximum difference of -18% with MC was obtained. Despite the limitations of the method, the results may be used as a guide to future experimental and theoretical studies on this applicator, since there is a lack of available data in literature.
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spelling doaj.art-aa7348ebc64d44448dc12624fbeceb7e2022-12-22T03:34:44ZengBrazilian Radiation Protection Society (Sociedade Brasileira de Proteção Radiológica, SBPR)Brazilian Journal of Radiation Sciences2319-06122020-03-018110.15392/bjrs.v8i1.1125Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapyEduardo De Paiva0Divisão de Física Médica, Instituto de Radioproteção e Dosimetria - IRD/CNENIn this work we present results of relative dose rate along central and lateral axis of the 106Ru/106Rh COC model plaque used for the treatment of tumors close to the optical nerve. The calculations were based on the beta-point dose function and are compared with an available data obtained by means of Monte Carlo simulations. Even with the limitations of the method, it was capable to reproduce the general trend of the dose rates around this kind of plaque and a maximum difference of -18% with MC was obtained. Despite the limitations of the method, the results may be used as a guide to future experimental and theoretical studies on this applicator, since there is a lack of available data in literature.https://bjrs.org.br/revista/index.php/REVISTA/article/view/1125beta particlesasymmetric beta ophthalmic applicatorsrelative depth-dose106Ru/106Rh
spellingShingle Eduardo De Paiva
Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapy
Brazilian Journal of Radiation Sciences
beta particles
asymmetric beta ophthalmic applicators
relative depth-dose
106Ru/106Rh
title Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapy
title_full Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapy
title_fullStr Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapy
title_full_unstemmed Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapy
title_short Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapy
title_sort theoretical estimate of relative depth doses for the asymmetric and spherical 106ru 106rh coc type plaque used in radiotherapy
topic beta particles
asymmetric beta ophthalmic applicators
relative depth-dose
106Ru/106Rh
url https://bjrs.org.br/revista/index.php/REVISTA/article/view/1125
work_keys_str_mv AT eduardodepaiva theoreticalestimateofrelativedepthdosesfortheasymmetricandspherical106ru106rhcoctypeplaqueusedinradiotherapy