Wenqiang Hua, Guangzhao Zhou, Yuzhu Wang, Ping Zhou, Shumin Yang, Chuanqian Peng, Fenggang Bian, Xiuhong Li, Jie Wang, "Measurement of the spatial coherence of hard synchrotron radiation using a pencil beam," Chin. Opt. Lett. 15, 033401 (2017)
- Chinese Optics Letters
- Vol. 15, Issue 3, 033401 (2017)
Fig. 1. Expansion ratio (blue circles) and visibility (red squares) plotted against the c l / L L = 4 μm λ = 0.15 n m z = 1.5 m c l
Fig. 2. Schematic diagram of the experimental setup at the SSRF BL19U2 beamline. The inset in the lower left corner is a scanning electron microscope image of the center portion of the grating.
Fig. 3. Measured diffraction patterns obtained with a secondary source slit size of (a) 100 μm × 100 μm 200 μm × 200 μm
Fig. 4. Measured diffraction patterns obtained with a secondary source slit size of (a) 100 μm × 100 μm 200 μm × 200 μm
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Table 1. Measured Beam Parameters of BL19U2 With a 13 μm Pinhole, Grating Period of 200 nm, Photon Energy of 12 keV, and Secondary Source Slit Sizes of 100 μm×100 μm and 200 μm×200 μm
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Table 2. Simulated Beam Parameters of BL19U2 Along the Beamline Using the GSM for a Photon Energy of 12 keV
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