Sadraei Javaheri AA, Jahangiri F, Sanaye Hajari S, Ranjbar MH, Panahi R, Niknam AR. Improving the validity of electron gun simulations; Theoretical and experimental approaches. J Theor Appl phys. 2024 May 25;18(3). Available from: https://oiccpress.com/jtap/article/view/8256