Comparison between Al2O3:C pellets and DIODEs for TSEB in vivo dosimetry using an anthropomorphic phantom
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Radiation Physics and Chemistry
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The Total Skin Electron Beam (TSEB) therapy is a technique that aims to provide skin surface homogeneous
absorbed dose in order to treat cutaneous T-cell lymphomas, both for curative and palliative purposes with
electron beams penetrating a few millimeters into the skin, reaching the affected parts without affecting internal
organs. In vivo dosimetry has become an important role for the treatment of total skin irradiation within a
rigorous quality assurance. The luminescent dosimeters, such as TLDs and OSLDs, have proven to be very useful
for the verification of the dose distribution and prescribed for the patient as the dose may differ from place to
place due to patient body geometry, overlapping of structures and asymmetries of the radiation field. Other
routine in vivo dosimetry tool is the DIODEs and they as well help validating radiation therapy dosimetry.
Al2O3:C OSL pellets manufactured and marketed by REXON Components and TLD Systems have already been
characterized for TSEB applications. The aim of this work is to compare the performance of Al2O3:C OSL pellets
from REXON to in vivo TSEB dosimetry with silicon DIODEs QEDTM detectors from Sun Nuclear (EUA) using an
anthropometric phantom. Dosimeters and DIODEs were previously characterized for 6 MeV HDTSe- electron
beams and then placed over an Anderson Rando® anthropomorphic phantom, evaluating the body dose distribution.
The reference point of measurement was the umbiculous as recommended by formalism. The results
showed that the Al2O3:C OSL pellets presented acceptable results, but some greater variation of the response in
relation to silicon DIODEs were found due to its considerable rotational dependency.
Como referenciar
ALMEIDA, S.B.; VILLANI, D.; SAKURABA, R.K.; REZENDE, A.C.P.; CAMPOS, L.L. Comparison between Al2O3:C pellets and DIODEs for TSEB in vivo dosimetry using an anthropomorphic phantom. Radiation Physics and Chemistry, v. 167, p. 1-4, 2020. DOI: 10.1016/j.radphyschem.2019.02.030. Disponível em: http://repositorio.ipen.br/handle/123456789/31426. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.