title: The effect of sequential irradiation with X-rays and fast neutrons on the survival of V79 Chinese hamster cells.
abstract: V79 Chinese hamster cells have been exposed to X-rays or fast neutrons or to the two radiations given sequentially. Cells exposed to a priming dose of X-rays and then exposed immediately to a series of neutron doses regard the X-ray dose as equivalent to a neutron dose giving the same surviving fraction (iso-effective). If the cells are exposed to a neutron dose followed by X-rays the resulting survival is higher than would be obtained if the primary dose had been an iso-effective X-ray dose. However, it is lower than would be expected if the two radiations acted independently. The results imply that there is interaction between the damage caused by X-rays and fast neutrons. If the two radiations are given 3 hours apart they act independently.
mesh_terms: D000818:Animals; D002470:Cell Survival / Q000528:radiation effects*; D006224:Cricetinae; D003412:Cricetulus; D004307:Dose-Response Relationship, Radiation; D005214:Fast Neutrons; D009502:Neutrons; D013997:Time Factors; D014965:X-Rays