Allan M. Cormack, a high energy physicist at Tufts University, shared the 1979 Nobel Prize in Physiology and Medicine for his key work in developing the methods for CAT scanners. At the time of development, these methods were widely regarded as the most significant advance in medical radiography since the 1895 discovery of x-rays. This and other major research accomplishments can be found at the DOE R&D Accomplishments website, a central forum for information about the outcomes of past U.S. Department of Energy R&D. Resource links with additional information are available. The website was developed and is maintained by OSTI. It is a Science Accelerator resource.