XAVIER FILHO, JOEL M.SILVEIRA, I.S.CALDAS, L.V.E.2022-01-252022-01-252021XAVIER FILHO, JOEL M.; SILVEIRA, I.S.; CALDAS, L.V.E. Radiology and mammography standard X-ray spectra simulated with the Monte Carlo method. <b>Brazilian Journal of Radiation Sciences</b>, v. 9, n. 2C, p. 1-13, 2021. DOI: <a href="https://dx.doi.org/10.15392/bjrs.v9i2C.1670">10.15392/bjrs.v9i2C.1670</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/32645.2319-0612http://repositorio.ipen.br/handle/123456789/32645Six standard beams described in the TRS-457 (IAEA): RQR 5, 8, M1, M2, M3, M4 were simulated using the EGSnrc Monte Carlo code. Each spectrum was created by an X-ray tube simulated in BEAMnrc, and attenuation curves were obtained using the application egs_kerma. The quality of each beam was evaluated by the 1st and 2nd half-value layers, the homogeneity coefficients and the mean energies. All beams presented quality parameters compatible with those described in TRS-457 (IAEA).1-13openAccessx-ray spectramammary glandsbiomedical radiographymonte carlo methodionizing radiationsArtigo de periódico2C910.15392/bjrs.v9i2C.16700000-0002-7362-2455https://orcid.org/0000-0002-7362-2455Sem PercentilSem Percentil CiteScore