The Effect of Filament Materials (Tungsten, Lanthanum Hexaboride) in 250 keV/1 mA Electron Beam Machines on Empirical Capacity of RVNRL. - Poernomo, Herry; Adabiah, Suhadah Rabi'atul; Darsono, Darsono; Suprapto, Suprapto; Pudjorahardjo, Djoko Slamet; Samin, Samin; Basuki, Kris Tri (International Journal of Technology, 2025)