K. SHAMOON, S. Geometrical Effects on the XRF Spectrometer Data Validity Using Hypothetical 20 keV Photon Source. Rafidain Journal of Science, [S. l.], v. 22, n. 3, p. 50–57, 2011. DOI: 10.33899/rjs.2011.31161. Disponível em: https://jamh.uomosul.edu.iq/index.php/rsci/article/view/47409. Acesso em: 28 sep. 2025.