Focusing Permanent-Magnet Undulator

    Authors

    Y. Tsunawaki; N. Ohigashi; K. Mima; T. Akiba; S. Kuruma; K. Imasaki; S. Nakai;L. R. Elias

    Comments

    Authors: contact us about adding a copy of your work at STARS@ucf.edu

    Keywords

    Instruments & Instrumentation; Nuclear Science & Technology; Physics, ; Particles & Fields; Spectroscopy

    Abstract

    A plane polarized undulator does not have the ability to focus an electron beam in the undulating plane (X-Z plane) because the magnetic field decreases away from the X-axis. To focus in the bending plane, a quadrupole field must be added to the undulating field. This can be achieved using curved magnets or trapezoid-shaped magnets. In this article, we analyze a few magnet configurations which produce X-Z focusing. It has been found that semicircular magnets or trapezoid magnets having 1.2-degrees angle are suitable as focusing permanent magnet undulator.

    Journal Title

    Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment

    Volume

    304

    Issue/Number

    1--3

    Publication Date

    1-1-1991

    Document Type

    Article; Proceedings Paper

    Language

    English

    First Page

    753

    Last Page

    758

    WOS Identifier

    WOS:A1991FV59500162

    ISSN

    0168-9002

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