Development of a hybrid permanent-magnet undulator prototype for free electron lasers

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Abstract

A hybrid permanent-magnet undulator is under development in Ansaldo Ricerche for the LISA FEL experiment. The criteria adopted to optimize the magnetic and mechanical design of the undulator and the results of field measurements on an eight-period prototype will be discussed. The device used for measuring the permanent-magnet blocks and the code developed for their sorting will be described.

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  • L. Barbagelata
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