Aspects of Mechanical Engineering for Undulators

TL;DR

This paper reviews mechanical engineering aspects of undulators, focusing on two types used in SwissFEL, detailing their frames, magnet adjustments, and device alignment mechanisms.

Contribution

It provides a comparative overview of mechanical design features of in-vacuum and APPLE-X undulators used in SwissFEL.

Findings

Detailed description of U15 and UE38 undulator designs

Insights into magnet adjustment techniques

Discussion on device alignment methods

Abstract

This paper gives an overview about aspects of mechanical engineering of undulators. It is based mainly on two types that are used in the SwissFEL facility. The U15 Undulator is an example of an in-vacuum type and the UE38 is an APPLE-X type. It describes the frame, the adjustment of the magnets with flexible keepers and the adjustment of the whole device with eccentric movers.