Ames Laboratory is a U.S. Department of EnergyOffice of Science national laboratory operated by Iowa State University. Ames Laboratory creates innovative materials, technologies and energy solutions. We use our expertise, unique capabilities and interdisciplinary collaborations to solve global problems.
Scientists at the US Department of Energy's Ames Laboratory expected to see slow, random movement when they dropped lead atoms on a lead-on-silicon surface. 'But what we saw? BOOM! Fast, explosive and organized!' said Michael Tringides, Ames Laboratory physicist. The unusual atom movement may represent a new way to grow perfect, tiny metal nanostructures for nanostransistors, nanoswitches, and nanomagnets.
A collaboration led by RadiaBeam Technologies, a California-based technology firm actively involved in accelerator R&D, is designing an electron beam source that doesn't need a laser. The team led by Luigi Faillace, a scientist at RadiaBeam, is testing a carbon nanotube cathode -- about the size of a nickel -- in Fermilab's High-Brightness Electron Source Lab that completely eliminates the need for a room-sized laser system currently used to generate the electron beam.
The Department of Energy's Office of Science is the single largest supporter of basic research in the physical sciences in the United States and is working to address some of the most pressing challenges of our time.