Helical Micro-Undulators For XFELs

Short-period undulators formed by four alternating longitudinally and radially magnetized rare-earth helices can create a high transverse field near the axis. Such undulators can provide a larger average oscillatory electron velocity than Halbach planar undulators and, in addition, the confinement o...

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Bibliographic Details
Main Authors: Magory, Eyal, Balal, Nezah, Bratman, Vladimir L.
Format: Conference Proceeding
Language:English
Subjects:
Magnetic confinement
Steel
Undulators
Online Access:Request full text
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Summary:Short-period undulators formed by four alternating longitudinally and radially magnetized rare-earth helices can create a high transverse field near the axis. Such undulators can provide a larger average oscillatory electron velocity than Halbach planar undulators and, in addition, the confinement of particles along both transverse coordinates. Hybrid undulators formed by two longitudinally pre-magnetized rare-earth and steel helices are easier to implement. Both types of micro-undulators seem promising for the creation of compact XFELs.
ISSN:2162-2035
DOI:10.1109/IRMMW-THz50927.2022.9896068