Part I. Machines, wigglers and facilities
Progress report on the 2GeV synchrotron radiation source (SRS) at Daresbury

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Abstract

In May 1975 the proposal by the Science Research Council to construct a 2GeV electron storage ring at Daresbury Laboratory was approved. The storage ring is to be a dedicated Synchrotron Radiation Source (SRS) devoted to experiments in all fields of science using ultraviolet and X-radiation. Construction has now started and completion is planned for late 1979. The new source will be installed in existing buildings built to house the 5 GeV electron synchrotron NINA, which ceased operation on 1st April 1977 and is now being removed.

The field in the normal bending magnets is 1.2 T, and the initial objective is a circulating beam current of 500 mA. It is planned to raise this later to 1 A. The storage ring will provide intense fluxes of photons up to about 20 keV from normal ports and up to 100 keV from 5 T superconducting transverse 3-pole wiggler magnets, of which two are planned.

Up to 12 beam ports are envisaged, of which six to eight should be in operation by 1983. Detailed plans for the first six ports are now being prepared. Beam lines up to 80 m long will be available for X-ray topography experiments. The VUV lines are being designed to give best possible access for experimenters, free from hazard from high energy bremsstrahlung.

Injection is from a 600 MeV synchrotron, itself fed by a 15 MeV linear accelerator. All major components of the injection system have beem ordered and completion is planned for May 1978. Detail design of the storage ring is now in progress; prototypes are being tested of the 500 MHz rf cavity, a special multipole magnet, the dipole magnet vacuum chamber (with beam port and backward tangent recess) and other components. Development of the control system is well advanced and it will be used for commissioning the injection system.

The paper briefly describes the source and outlines the plans for the initial beam lines. It reports on the progress of construction and development work.

References (4)

  • Daresbury Laboratory Report DL/SRF/R2

    (1975)
  • D. E. Baynham, P. T. M. Clee and D. J. Thompson, this issue, p....
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