Speaker
Description
Concepts for reducing on-axis heat load become essential as photon flux increases in next-generation synchrotrons, especially in the soft X-ray regime. Therefore, APPLE “knot” undulators are promising insertion devices, as they divert most of the energy off-axis without compromising polarization purity. The first two APPLE X knot undulators, 2 m long and with a period of 36 mm, were designed and built at Paul Scherrer Institute (PSI) and installed into the newly upgraded Swiss Light Source (SLS2.0) electron storage ring.
This contribution presents the final magnetic characterization results of the novel undulators and derives photon characteristics, including how effectively the radiation power is expected to be reduced on-axis in contrast to a regular elliptical undulator, especially in linear modes. Further, their initial performance with the beam is demonstrated, providing a glimpse of the ongoing beamline commissioning and operation.
| Paper status | Resubmitted proceeding files received and assigned to an editor. Accepted by Submitter. |
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