Low-dose-rate induces more severe cognitive impairment than highdose-rate in rats exposed to chronic low-dose γ-radiation
Background: Owing to the long penetration depth of gamma (γ)-rays, individuals working in ionizing radiation environments are chronically exposed to low-dose γradiation, resulting in cognitive changes. Dose rate significantly affects radiationinduced biological effects; however, its role in chronic low-dose γ-irradiation-induced cognitive impairment remains unclear. We aimed to investigate whether