Radiant, a leader in portable, mass-produced nuclear generators, announced today that it submitted its DOE Authorization Request for Kaleidos (DARK) to the U.S. Department of Energy (DOE) for review earlier this month. This submission meets the intent of the Preliminary Documented Safety Analysis (PDSA), an essential milestone that keeps the company on track to start up its first reactor next year at the National Reactor Innovation Center's (NRIC) DOME facility at Idaho National Laboratory (INL).