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

Eduardo De Paiva

doi:10.15392/bjrs.v8i1.1125

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

Authors

Eduardo De Paiva Divisão de Física Médica, Instituto de Radioproteção e Dosimetria - IRD/CNEN https://orcid.org/0000-0002-2108-4616

DOI:

https://doi.org/10.15392/bjrs.v8i1.1125

Keywords:

beta particles, asymmetric beta ophthalmic applicators, relative depth-dose, 106Ru/106Rh

Abstract

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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Published

2020-03-22

How to Cite

De Paiva, E. (2020). Theoretical estimate of relative depth-doses for the asymmetric and spherical 106Ru/106Rh COC-type plaque used in radiotherapy. Brazilian Journal of Radiation Sciences, 8(1). https://doi.org/10.15392/bjrs.v8i1.1125

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Issue

Vol. 8 No. 1 (2020)

Section

Articles

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

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