(IDAHO FALLS, Idaho) – For the first time, researchers from Idaho National Laboratory, the Grainger College of Engineering at the University of Illinois Urbana-Champaign, and Purdue University used a geographically distributed control system to remotely and automatically adjust the power of a research reactor in real time, with the reactor’s own safety systems retaining full control throughout. Working with PUR1, a low-power research reactor at Purdue, the team first demonstrated remote power adjustments through an automatic adjustment system called a digital control loop, then made the loop further autonomous using a reinforcement learning model running in software that simulates how physical forces interact within the reactor. The demonstration linked three sites operating together in real time: high-performance computing systems in Idaho, the PUR1 reactor in Indiana, and a Microsoft Azure cloud environment in Virginia.