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Updated: Jun 6, 2026

Clinical Imaging of Microwave Mammography
Published on: November 14, 2025
Establishment of radiation qualities for mammography according to the IEC 61267 and TRS 457
Evandro J Pires1, Mariano G David, J Guilherme Peixoto
1Laboratório de Ciências Radiológicas da Universidade do Estado do RJ, Rio de Janeiro, Brazil. ejpires@lcr.uerj.br
Abstract:
This article presents the technical conditions necessary to establish appropriate radiation qualities for the calibration of the dosemeters used in the mammography detectors in the Laboratório de Ciências Radiológicas (LCR) from the Universidade do Estado do Rio de Janeiro. Tests were conducted to evaluate the homogeneity of the radiation field, scattering, half-value layers and system stability. The calibration method (substitution) is described in this work. A moderate alteration in filtration makes it possible to maintain the half-value layers within the limits recommended. The results indicate the adequacy of the LCR laboratory for the calibration of the dosemeters in the radiation qualities for mammography with an expanded uncertainty in the best measurement capability of ± 1.8 % (k = 2).
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