1. A radiographic imaging device, comprising: a detecting section that detects a dose of radiation that has been irradiated when imaging a radiographic image corresponding to irradiated radiation; a determining section that determines whether or not the radiation has been falsely detected on the basis of the dose of radiation that has been detected by the detecting section; an image acquisition section that acquires the radiographic image; a storage section that stores the radiographic image; and a control section that controls the storage section so as to store the radiographic image in a case in which the determining section determines that the detected irradiation of radiation is not a false detection.