Dieter Einfeld

Design of a diffraction-limited light source

A modified multiple bend achromat (MBA) optics as a lattice for low emittance storage rings is presented. The novel feature of this lattice is the use of horizontally defocussing bending magnets with different bending angles to keep the radiation integrals low. It is shown that a storage ring with such a lattice can have a low emittance at a relatively compact size. An application of the MBA structure for a 3 GeV diffraction limited storage ring is presented and discussed.

First multi-bend achromat lattice consideration

The first proposed lattice for a ‘diffraction-limited light source’ is reported. This approach has now more or less been used for the MAX IV project.

Diffraction-limited storage-ring vacuum technology

A compact lattice and small magnet apertures will be the main characteristics of future diffraction-limited storage rings, adding difficulties for the design of the vacuum system of these machines. The use of NEG coatings and distributed absorbers could provide a solution to overcome these challenges.