Process for improving radiation charge by radon

摘要

Process for improving the radiation charge by radon and its subsequent products comprises depositing the radioactive decomposition products contained in the room air on substrate and leaving the radioactive materials fixed on the substrate until they are decomposed into inactive or very long-lived materials. Also claimed is an apparatus for reducing the radiation charge comprising an adsorption device with a labyrinth of adsorption plates. Preferably the substrate is polymeric plastic, e.g., PE, PP, PS, PVC, phenoplast, polyester and alkyd resin, polyepoxide, polyamide, aminoplast, polyurethane, PMMA, PTFE, polyvinylacetate, or polycarbonate, preferably a plastic based on melamine with low dust charge and average relative air moisture.