Experimental measurement of the four-dimensional coherence function for an undulator X-ray source

C. Q. Tran, G. J. Williams, A. Roberts, S. Flewett, A. G. Peele, D. Paterson, M. D. De Jonge, K. A. Nugent

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

36 Citas (Scopus)

Resumen

A full measurement of the four-dimensional coherence function from an undulator beam line is reported. The analysis is based on the observation that the data are consistent with a coherence function that is mathematically separable. The effective source size can be altered by changing the width of the exit slit, and the complete coherence function is presented for two settings. We find, to within experimental error, that the four-dimensional complex degree of coherence can be described as a real Gaussian function that depends only on the difference of the spatial coordinates.

Idioma originalInglés
Número de artículo224801
PublicaciónPhysical Review Letters
Volumen98
N.º22
DOI
EstadoPublicada - 30 may. 2007
Publicado de forma externa

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