Addendum to the article “On harmonic generation in x-ray free-electron lasers with variable undulator deflection parameter” (2021, vol. 91, iss. 12. p. 1881–1894)
Abstract:
The plots of the theoretically calculated spectral lines for some free electron lasers (FELs) are presented and explained. The plots allow evaluation of the spectral line width rather than showing real shape of the radiation line.
Keywords:free electron laser, spectral line, spectral density of radiation.
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