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Paper   IPM / ILSF / 16826
  Title:   Elliptical plasma-filled waveguide as a new standard short-period undulator
1.  M. Hadad
2.  S. Yousefnejad
3.  F. Saeidi
4.  J. Rahighi
5.  B. Shokri
  Status:   Published
  Journal: Journal of Synchrotron Radiation
  Year:  2021
  Supported by:  IPM
Undulators as the sources of high-brilliance synchrotron radiation are of widespread interest in new generations of light sources and free-electron lasers. Microwave propagation in a plasma-filled elliptical waveguide can be studied as a standard short-period undulator. This structure as a lucrative insertion device can be installed in the storage ring of third- and fourth-generation light sources to produce high-energy and high-brilliance synchrotron radiation. In this article, the propagation of the transverse electric modes in a plasma-filled waveguide with an elliptical cross-section is investigated, and the field components, the cut-off frequencies and the electron beam trajectory are calculated. With due consideration of the electron beam dynamics and in order to achieve a standard short-period undulator, parameters such as the dimensions of the waveguide elliptical cross-section, the microwave frequency and the plasma density are calculated.

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