%0 Journal Article %T STUDY OF THE STRUCTURE AND OPTICAL DENSITY OF POLYIMIDE TRACK (NUCLEAR) MEMBRANE %A Cherkashina, N.I. %A Pavlenko, Z.V. %A Manaev, V.A. %A Samoilova, E.S. %A Sidelnikov, R.V. %K polyimide membranes, heavy ions, chemical etching, optical density, contact angle, surface morphology %J Bulletin of Belgorod State Technological University named after. V. G. Shukhov %D 2020 %N 5 %P 8 %I Belgorod State Technological University named after V.G. Shukhov