Assessment of dose heterogeneity in TBI using the thorax of the anthropomorphic Alderson-Rando phantom and TLDs in two different setups

Fernando Rodrigues; Arnie Nolasco; Luiz Cláudio Meira Belo; Claudete Silva; Telma Fonseca

doi:10.15392/2319-0612.2023.2178

Authors

Fernando Rodrigues Universidade Federal de Minas Gerais
Arnie Nolasco Instituto de Radioterapia São Francisco
Luiz Cláudio Meira Belo Centro de Desenvolvimento da Tecnologia Nuclear
Claudete Silva Centro de Desenvolvimento da Tecnologia Nuclear
Telma Fonseca Universidade Federal de Minas Gerais

DOI:

https://doi.org/10.15392/2319-0612.2023.2178

Keywords:

Total Body Irradiation, Radiation Dosimetry, Radiotherapy, Thermoluminescence

Abstract

Total body irradiation (TBI) is a treatment modality of radiotherapy. It can be used for immunosuppression of transplanted patients or for metastatic protocols. In this study, TBI was performed using the anthropomorphic Alderson-Rando phantom filled with thermoluminescent dosimeters (TLDs) and irradiated with a 6 MV photon beam from the Elekta linear accelerator in two different setups, one at the hospital São Francisco, BH, MG and second at the hospital Santa Casa in Lavras, MG. The dose distribution in the left and right lungs was estimated, analyzed, and compared with results from the literature. Our results showed that dose homogeneity is more adequate with dual-field irradiation.

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