ВПЛИВ ДОБАВОК ТУГОПЛАВКИХ СПОЛУК ТА ТЕМПЕРАТУРИ ВИПАЛУ НА ГАММА РОЗСІЮВАННЯ ГЕОЦЕМЕНТНИХ КОМПАУНДІВ ПРИ КОНДИЦІЮВАННІ РАДІОАКТИВНИХ ВІДХОДІВ

Abstract

The paper considers the influence of refractory compounds and firing temperature in the range of 350–950 °C on the gamma scattering of geocement compounds for conditioning radioactive waste. A positive effect of tungsten-nickel alloy and boron carbide on the total gamma scattering and linear attenuation coefficient is noted, and molybdenum disilicide on thermal scattering, which contributes to the slowdown of radiolysis during radioactive waste conditioning and a reduction in gamma radiation exposure to metal drums and the inner surfaces of concrete containers. These requirements are met by a compound containing 2.5–5% WNi, 5% MoSi₂ and 2.5–3.5% B₄C. Knowledge of the volumetric deformations of compounds will allow metal drums to be optimally filled with radioactive solution in terms of height or volume.