Measurement of the spatial coherence function of undulator radiation using a phase mask |
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Authors: | Lin J J A Paterson D Peele A G McMahon P J Chantler C T Nugent K A Lai B Moldovan N Cai Z Mancini D C McNulty I |
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Affiliation: | School of Physics, University of Melbourne, Victoria 3010, Australia. |
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Abstract: | A measurement of the horizontal coherence function of 7.9 keV radiation from an undulator beam line at the Advanced Photon Source is reported. X-ray diffraction from a phase-shifting mask was used, and the coherence function was measured as a function of the width of beam-conditioning slits in the beam line. The coherence distribution is found to be best described by a Lorentzian function. |
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