Purpose built storage ring for synchrotron radiation research

Plans were approved for building a 2 GeV electron storage ring at the Daresbury Laboratory, specifically for producing beams of synchrotron radiation, and so provide a continuing research facility when the electron synchrotron, NINA, is phased out. The initial objective will be to achieve the maximum current obtainable (0.37 A) using a single 250 kW, 500 MHz klystron to provide the rf power. This will produce high fluxes of photons down to 1 A, initially along three beam lines feeding six experiments. User requirements have dominated the design considerations. Later developments proposed include the addition of a second klystron which will allow the beam current to be increased to 1 A and will also provide excess power to supply the additional requirements when special superconducting ''wiggler'' magnets are installed to extend the usable wavelength range down to 0.1 A. The number of beam lines is expected to increase to about ten. (auth)