Gamma radiation attenuation characteristics of composites based on polyimide track membranes filled with nanodispersed Pb

The paper presents data on the effect of γ-radiation polymer composites based polyimide track membranes filled with nanodispersed lead. radiation-protective properties were studied by theoretical and experimental methods. To carry out studies composite, radioactive sources cesium-137 cobalt- 60 used. calculated linear attenuation coefficient in depending initial energy γ-quanta range from 0.5 to 5 MeV, are presented. contribution photoelectric effect, Compton formation electron-positron pairs total gamma radiation composite is estimated. When passes through 2.5 mm intensity absorption decreases 17.7 4.4% at energies respectively. It was experimentally established that introduction filler Pb into a membrane made it possible increase more than 6 times an 0.662 factor 3.7 1.252 MeV as compared pure polymeric material.