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Extreme-ultraviolet compact spectrometer for the characterization of the harmonics content in the free-electron-laser radiation at FLASH (Articolo in rivista)

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Extreme-ultraviolet compact spectrometer for the characterization of the harmonics content in the free-electron-laser radiation at FLASH (Articolo in rivista) (literal)

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F. Frassetto, S. Coraggia, S. Dziarzhytski, N. Gerasimova and L. Poletto (2012)
Extreme-ultraviolet compact spectrometer for the characterization of the harmonics content in the free-electron-laser radiation at FLASH
in Journal of synchrotron radiation
(literal)

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F. Frassetto, S. Coraggia, S. Dziarzhytski, N. Gerasimova and L. Poletto (literal)

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[ 1 ] Natl Res Council Italy, Inst Photon & Nanotechnol, I-35131 Padua, Italy [ 2 ] DESY, HASYLAB, D-22607 Hamburg, Germany (literal)

Titolo

Extreme-ultraviolet compact spectrometer for the characterization of the harmonics content in the free-electron-laser radiation at FLASH (literal)

Abstract

The design and the commissioning results of a portable and compact spectrometer for the high harmonics content characterization of the extreme-ultraviolet radiation of FLASH (free-electron laser in DESY, Hamburg, Germany) are presented. The instrument is a grazing-incidence flat-field spectrometer equipped with two variable-line-spaced gratings; it covers the 2-40 nm wavelength region with a spectral resolution in the 0.1-0.2% range. Both spectral and intensity fluctuations of the fundamental emission and the harmonics are monitored. (literal)

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