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
School of Physics, University of Melbourne, Victoria 3010, Australia.
Phys Rev Lett. 2003 Feb 21;90(7):074801. doi: 10.1103/PhysRevLett.90.074801. Epub 2003 Feb 20.
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.
