Radiation Lethality and Circadian Rhythmicity in Mice

Abstract
Two methods were used to study the influence of circadian rhythmicity on radiosensitivity in mice as a factor in acute radiation effects studies. The results suggested the presence of diurnal differences in radiosensitivity; however, these slight differences were neither consistent nor significant. It was concluded that circadian rhythmicity is not a primary factor in studying whole-body effects from acute radiation exposure.