Email this article Compensating for Variation in Undulator Focusing when Tuning the Wavelength of the Novosibirsk FEL Radiation
- Authors: Matveev A.S.1,2, Shevchenko O.A.1, Vinokurov N.A.1
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Affiliations:
- Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences
- Novosibirsk National Research State University
- Issue: Vol 83, No 2 (2019)
- Pages: 163-165
- Section: Article
- URL: https://journals.rcsi.science/1062-8738/article/view/187271
- DOI: https://doi.org/10.3103/S1062873819020217
- ID: 187271
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Abstract
Tuning the wavelength of the radiation on a free-electron laser (FEL) changes the strength of its undulators focusing. Two approaches to compensating for this effect are considered: conserving the transport matrix and matching the Twiss parameters. Both approaches are validated at the Novosibirsk FEL. As a result, beam propagation is maintained when retuning the wavelength of FEL radiation in the range of 120–130 μm.
About the authors
A. S. Matveev
Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences; Novosibirsk National Research State University
Author for correspondence.
Email: matveev.a.s@ya.ru
Russian Federation, Novosibirsk, 630090; Novosibirsk, 630090
O. A. Shevchenko
Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences
Email: matveev.a.s@ya.ru
Russian Federation, Novosibirsk, 630090
N. A. Vinokurov
Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences
Email: matveev.a.s@ya.ru
Russian Federation, Novosibirsk, 630090
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