Determination of correction factors in beta radiation beams using Monte Carlo method
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Applied Radiation and Isotopes
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The absorbed dose rate is the main characterization quantity for beta radiation. The extrapolation chamber is
considered the primary standard instrument. To determine absorbed dose rates in beta radiation beams, it is
necessary to establish several correction factors. In this work, the correction factors for the backscatter due to the
collecting electrode and to the guard ring, and the correction factor for Bremsstrahlung in beta secondary
standard radiation beams are presented. For this purpose, the Monte Carlo method was applied. The results
obtained are considered acceptable, and they agree within the uncertainties. The differences between the
backscatter factors determined by the Monte Carlo method and those of the ISO standard were 0.6%, 0.9% and
2.04% for 90Sr/90Y, 85Kr and 147Pm sources respectively. The differences between the Bremsstrahlung factors
determined by the Monte Carlo method and those of the ISO were 0.25%, 0.6% and 1% for 90Sr/90Y, 85Kr and
147Pm sources respectively.
Como referenciar
POLO, IVON O.; SANTOS, WILLIAM de S.; CALDAS, LINDA V.E. Determination of correction factors in beta radiation beams using Monte Carlo method. Applied Radiation and Isotopes, v. 140, p. 50-54, 2018. DOI: 10.1016/j.apradiso.2018.06.011. Disponível em: http://repositorio.ipen.br/handle/123456789/29337. 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.