MAHROK, Mazin F. Radiation contrast improvement by suitable choice of x-ray radiation spectrum. Iraqi Journal of Physics, Baghdad, Iraq., v. 9, n. 14, p. 1–5, 2011. Disponível em: https://ijp.uobaghdad.edu.iq/index.php/physics/article/view/808. Acesso em: 23 dec. 2024.