Determination of transmission factors in beta radiation beams

Autor(es)

Polo, Ivon Oramas ^[1] ; Caldas, Linda V. E. ^[1]

Afiliação do(s) autor(es)

^[1] CNEN, IPEN, Av Prof Lineu Prestes 2242, BR-05508000 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Applied Radiation and Isotopes; v. 136, p. 82-86, JUN 2018.
• Citações Web of Science: 0

Resumo

In beta emitters, in order to evaluate the absorbed dose rate at different tissue depths, it is necessary to determine the transmission factors. In this work, the transmission factors determined in beta secondary standard radiation beams are presented. For this purpose, an extrapolation chamber was used. The results obtained were considered acceptable, and they are within the uncertainties in comparison with the values provided by the source calibration certificate. The maximum differences between the results obtained in this work and those from the calibration certificate were 3.3%, 3.8% and 5.9% for Sr-90/Y-90, ssKr and (147)pm sources respectively. (AU)

• Processo FAPESP: 08/57863-2 - P&D em metrologia das radiações
• Beneficiário: Linda Viola Ehlin Caldas
• Modalidade de apoio: Auxílio à Pesquisa - Temático