A Monte Carlo Simulation study on the design and optimization of collimators for non-collinear cascade gamma-ray correlation emissions in medical imaging. Brazilian Journal of Radiation Sciences, Rio de Janeiro, Brazil, v. 13, n. 1, p. e2573, 2025. DOI: 10.15392/2319-0612.2025.2573. Disponível em: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/2573. Acesso em: 2 may. 2025.