Space-Charge Effect on the Theoretical Design of Electron Gun Operated under Zero Magnification Condition. Baghdad Science Journal, Iraq, Baghdad, v. 11, n. 2, p. 572–576, 2014. DOI: 10.21123/bsj.2014.11.2.572-576. Disponível em: https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2666.. Acesso em: 27 apr. 2024.