title: [Action of secondary radiation from 70-Gev protons on the cellular DNA of mammals].
abstract: A study was made of the effect of secondary radiation of 70 GeV protons on DNA of Chinese hamster cells. With a reference to fibroblast DNA, lymphoid cell DNA, and the lethal effect of radiation on the survival of Chinese hamster cells the RBE was 1.6-7.6, 1.1-3.8 and 1.14-1.7, respectively. DNA breaks were repaired to an equal level after exposure to secondary radiation from the accelerator and gamma-radiation from 60Co in equally effective doses.
mesh_terms: D000818:Animals; D002051:Burkitt Lymphoma / Q000532:radiotherapy; D002470:Cell Survival / Q000528:radiation effects; D002478:Cells, Cultured; D006224:Cricetinae; D004247:DNA / Q000528:radiation effects*; D005347:Fibroblasts / Q000528:radiation effects; D005720:Gamma Rays; D008214:Lymphocytes / Q000528:radiation effects; D010315:Particle Accelerators; D011522:Protons; D012062:Relative Biological Effectiveness
chemical_list: D011522:Protons; D004247:DNA
vernacular_title: Issledovanie deĭstviia vtorichnogo izlucheniia ot protonov 70 Gév na DNK kletok mlekopitaiushchikh.