Speaker
Description
Undulators are widely employed on accelerator-based light sources. The length of these devices is usually constrained by the length of the straight sections, and this will become even more critical for Diffraction Limited Storage Rings based on existing Synchrotrons, where the number of magnets required to store the electron beam is huge. Thus, to reach high brightness and flux, the total number of periods of undulators must remain large and the magnetic period values will be reduced. Cryogenic Permanent Magnets Undulators (CPMU) are a solution to keep a high peak field value while decreasing the magnetic period. Planar CPMUs have become widely adopted in Synchrotrons worldwide and some laboratories are developing equivalent devices providing also elliptical polarizations. A review of low period CPMU installed on accelerator-based light sources will be presented and sustainability of these sources will also be discussed.
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