ARGONNE NATIONAL LABORATORY

laboratory of the U.S. Department of Energy in Argonne, Ill., that is operated by the University of Chicago and the Argonne Universities Association. It was founded in 1946 to conduct basic atomic research and to develop the peaceful uses of nuclear energy. Argonne National Laboratory now carries out research on a broad range of science and engineering topics, including high-temperature superconductors, advanced computers, and the causes and cures of cancer. The Argonne laboratory houses several major research facilities, one of the most recent being the Advanced Photon Source (APS), a 7-GeV synchrotron that is designed to produce intense beams of high-energy X rays. Another facility, ATLAS, is a superconducting linear accelerator that uses beams of heavy ions up to and including uranium. The Intense Pulsed Neutron Source provides a powerful source of neutrons for structural studies. Christine Sutton