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Figure 5
(a) Experimental setup for the photocurrent measurement. (b) Optical image of precision pinhole with an aperture diameter of 1 mm. (c) Spatial distribution of the photocurrent passing through the pinhole. The aperture tolerance of the pinhole is ±5 µm. The red ellipse in the upper left shows the schematic shape of the synchrotron radiation (hν = 400 eV, horizontal linear polarized, ES width = 30 µm) at the sample position. The intensity plots along the Y axis (blue) and Z axis (red) diameter directions are shown in the bottom and right panels, respectively.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 27| Part 4| July 2020| Pages 923-933
https://doi.org/10.1107/S1600577520006712
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