Synchrotron‐radiation sources proliferate

The recent authorization in the UK financing construction of Daresbury Laboratory's Synchrotron Radiation Source ensures that a greater synchrotron radiation supply will be on tap for researchers within four years. Though it will not be the first facility built exclusively for use as a synchrotron radiation “light bulb,” SRS—scheduled to be commissioned in April 1979—is to be the first dedicated source comparable in essential design parameters with the largest existing electron‐positron storage rings. In the meantime, experimenters at other facilities around the world are pressing ahead with a variety of new and exciting studies, usually sharing present sources symbiotically with high‐energy physicists.