Trubitsyn A, Grachev E, Kochergin E, Serezhin A. COLLIMATOR AND TELESCOPIC MODES OF A CATHODE LENS. Eurasian phys. tech. j. [Internet]. 2025 Dec. 29 [cited 2026 Mar. 20];22(4 (54):123-31. Available from: https://phtj.buketov.edu.kz/EPTJ/article/view/1327