Detalhes do Artigo
[303349] Evaluation of the response of semiconductor dosimeters with the radiation qualities used for mammography
Autores: Viviane Khoury Asfora, Itayana A. Lima, Vinicius S. M. de Barros, Helen J. Khoury
Resumo: The aim of this study is to evaluate the response of commercial semiconductor dosimeters to different radiation qualities used for mammography and to estimate deviations and uncertainties related to different calibration scenarios. Energy dependence of the response of six semiconductor dosimeters was determined for four different anode-filter combinations and tube voltages from 25 to 35 kV. The results showed that the calibration coefficients for different radiation qualities (anode-filter and tube voltage combinations) compared to a reference radiation quality (Mo-Mo, 28 kV) deviate up to 14%. The semiconductor dosimeters showed a large energy dependence depending on the choice of the target/filter combination.