New Take on Impacts of Low Dose Radiation - Berkeley LabImaging of a cell’s DNA damage response to radiation shows that 1.5 minutes after irradiation, the sizes and intensities of radiation induced foci (RIF) are small and weak, but 30 minutes later damage sites have clustered into larger and brighter RIF, probably reflecting DNA repair centers. Researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab),
