Coherence and wavefront characterization of Si-111 monochromators using double-grating interferometry

A study of the coherence and wavefront properties of a pseudo-channel-cut monochromator in comparison with a double-crystal monochromator is presented. Using a double-grating interferometer designed for the hard X-ray regime, the complex coherence factor was measured and the wavefront distortions at...

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Détails bibliographiques
Publié dans:Journal of synchrotron radiation. - 1994. - 17(2010), 3 vom: 14. Mai, Seite 299-307
Auteur principal: Diaz, Ana (Auteur)
Autres auteurs: Mocuta, Cristian, Stangl, Julian, Keplinger, Mario, Weitkamp, Timm, Pfeiffer, Franz, David, Christian, Metzger, Till H, Bauer, Günther
Format: Article en ligne
Langue:English
Publié: 2010
Accès à la collection:Journal of synchrotron radiation
Sujets:Journal Article
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520 |a A study of the coherence and wavefront properties of a pseudo-channel-cut monochromator in comparison with a double-crystal monochromator is presented. Using a double-grating interferometer designed for the hard X-ray regime, the complex coherence factor was measured and the wavefront distortions at the sample position were analyzed. A transverse coherence length was found in the vertical direction that was a factor of two larger for the channel-cut monochromator owing to its higher mechanical stability. The wavefront distortions after different optical elements in the beam, such as monochromators and mirrors, were also quantified. This work is particularly relevant for coherent diffraction imaging experiments with synchrotron sources 
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700 1 |a Mocuta, Cristian  |e verfasserin  |4 aut 
700 1 |a Stangl, Julian  |e verfasserin  |4 aut 
700 1 |a Keplinger, Mario  |e verfasserin  |4 aut 
700 1 |a Weitkamp, Timm  |e verfasserin  |4 aut 
700 1 |a Pfeiffer, Franz  |e verfasserin  |4 aut 
700 1 |a David, Christian  |e verfasserin  |4 aut 
700 1 |a Metzger, Till H  |e verfasserin  |4 aut 
700 1 |a Bauer, Günther  |e verfasserin  |4 aut 
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