Arkhangelsk: repair of Elekta linear accelerators

From June 2 to June 4, 2025, service engineer Ilya Shchetkin in Arkhangelsk replaced the mylar mirror on the Elekta Synergy linear accelerator and calibrated the optical system and replaced the cooling fan in the modulator, eliminating the "M.fil.ctrl" error. And on the Elekta Infinity linear accelerator, he adjusted the parameters of the electron gun current.