Extreme-ultraviolet compact spectrometer for the characterization of the harmonics content in the free-electron-laser radiation at FLASH.
J Synchrotron Radiat
; 19(Pt 4): 596-601, 2012 Jul.
Article
em En
| MEDLINE
| ID: mdl-22713896
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 2-40â
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.
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MEDLINE
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En
Ano de publicação:
2012
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Article