PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY PASCAL GOETGHELUCK / SCIENCE PHOTO LIBRARY
European Synchrotron Radiation Facility (ESRF), Grenoble, France. Photograph of the ESRF storage ring, an 844 metre in circumference ring, where high energy electrons produced by the synchrotron circulate within a vacuum. The electrons can then be directed from the storage ring to a beamline, for use in a variety of experiments in fields as varied as solid state physics, materials science, chemistry, biology and medicine. At the time of its inauguration on September 30, 1994, the ESRF was the world's brightest source of X-rays. It can produce X-rays that are one thousand billion times brighter than hospital X-rays.
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