Effects of External Magnetic Field on Focusing and Energy Distribution of Primary Electrons in an Ion Source. Al-Nahrain Journal of Science, [S. l.], v. 27, n. 2, p. 99–113, 2024. DOI: 10.22401/xpha9056. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/2711. Acesso em: 18 apr. 2025.