Lin JJA, Paterson D, Peele AG, McMahon PJ, Chantler CT, Nugent KA, Lai B, Moldovan N, Cai Z, Mancini DC, McNulty I. Measurement of the spatial coherence function of undulator radiation using a phase mask.
Phys Rev Lett 2003;
90:074801. [PMID:
12633233 DOI:
10.1103/physrevlett.90.074801]
[Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2002] [Indexed: 05/24/2023]
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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