Speaker
Description
Radiation Sterilization Center of Ural Federal University working from 2015 in industrial area for sterilization of medical goods and processing of polymer materials. Linear accelerator produced by “Corad” company with 10 MeV E-beam energy and 1 mA current allow to irradiate about 50000 m3 of different production per year. One of the critical parts of LINAC is waveguide input/output window that can be mechanically damaged due multiple breakdowns forming from the vacuum or waveguide side of the window in permanent accelerator exploiting. We got this situation in our accelerator after three years of LINAC utilizing with ceramic waveguide window TH20674 of Thales Electron Devices company. This window became unusable due to through microcracks and loss of vacuum density. To restore the window, we have developed a coating on the base of polyvinyl acetate resistant to ionizing fields and microwave radiation. By forming of 1-2 mm layer of compound on the surface of the window from the wave guide side in liquid phase and subsequent drying we got smooth glassy coating that allowed us fully restore usability of wave guide window at nominal parameters of the LINAC. Thus, we found the method of waveguide window electrical and mechanical strength Increasing.
