A design concept for the inclusion of superconducting dipoles within a synchrotron light source lattice

The advantage of using high field superconducting dipoles to provide hard radiation in a synchrotron light source is that, in contrast to using high field wigglers, scarce insertion device straights are not used up. A strategy is proposed for replacing selected conventional dipoles within a lattice with superconducting devices where and when required. The potential of both double and triple bend achromats is compared and contrasted. The properties of the superconducting dipoles as radiation source points are considered as also is their overall impact on the lattice behaviour. In a feasibility study for the advanced X-ray source DIAMOND, which is briefly described, it is concluded that a triple bend achromat is the best choice for a 3 GeV structure with 16 cells that meets the defined specification