title: Measurement of the spatial coherence function of undulator radiation using a phase mask.
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.
authors.affiliation: School of Physics, University of Melbourne, Victoria 3010, Australia.
authors.forename: J J A
authors.initials: JJ
authors.lastname: Lin
authors.forename: D
authors.initials: D
authors.lastname: Paterson
authors.forename: A G
authors.initials: AG
authors.lastname: Peele
authors.forename: P J
authors.initials: PJ
authors.lastname: McMahon
authors.forename: C T
authors.initials: CT
authors.lastname: Chantler
authors.forename: K A
authors.initials: KA
authors.lastname: Nugent
authors.forename: B
authors.initials: B
authors.lastname: Lai
authors.forename: N
authors.initials: N
authors.lastname: Moldovan
authors.forename: Z
authors.initials: Z
authors.lastname: Cai
authors.forename: D C
authors.initials: DC
authors.lastname: Mancini
authors.forename: I
authors.initials: I
authors.lastname: McNulty