Design of Unipotential Electrostatic Lenses Operated Under zeroMagnification. Al-Nahrain Journal of Science, [S. l.], v. 13, n. 3, p. 21–25, 2010. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/1080.. Acesso em: 5 may. 2024.