History of nuclear safety modeling (IMAGE) DOE/Sandia National Laboratories Caption A timeline of Sandia National Laboratories-led studies to inform the severe accident code, efforts to expand the code to advance reactor designs, as well as world events that led to further Sandia studies. Credit Laura Hatfield/Sandia National Laboratories Usage Restrictions With credit License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.