词条 | Argonne National Laboratory |
释义 | Argonne National Laboratory laboratory, Argonne, Illinois, United States ![]() The Argonne laboratory houses several major research facilities that are available for collaborative and interdisciplinary use by government, academic, and industrial scientists. Four of these facilities—the Advanced Photon Source (APS), the Intense Pulsed Neutron Source (IPNS), the Argonne Tandem Linear Accelerator System (ATLAS), and the High-Voltage Electron Microscope- (HVEM-) Tandem Facility—have been designated official U.S. Department of Energy National User Facilities. The APS, which opened in 1996, is a 7-gigaelectron volt (electron volt) (GeV) synchrotron particle accelerator that is designed to produce brilliant (highly collimated) and intense beams of high-energy X-ray synchrotron radiation for advanced X-ray imaging and diffraction (X-ray diffraction) studies. Using the APS, scientists have performed X-ray diffraction analyses to unravel the structures of complex biological supramolecular assemblies, including ribosomes (ribosome), enzyme-inhibitor (inhibition) (drug) complexes, and bacterial toxins (toxin). ATLAS is a superconducting linear accelerator that accelerates beams of heavy ions (ion) up to and including uranium for high-energy nuclear physics (physics) research. One example of this work involves experiments to probe the details of nuclear structure in order to answer fundamental questions concerning nuclear stability (isotope). The IPNS provides a powerful source of neutrons (neutron) for neutron-scattering experiments in materials science research; applications include high-temperature ceramics (industrial ceramics) and advanced superconducting materials. The HVEM-Tandem Facility combines electron microscopy (electron microscope) with ion-beam irradiation to study, for example, high-temperature superconductors (superconductivity). |
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