Figure 1 | Scientific Reports

Figure 1

From: Recovery of Degraded-Beyond-Recognition 19th Century Daguerreotypes with Rapid High Dynamic Range Elemental X-ray Fluorescence Imaging of Mercury L Emission

Figure 1

(A) An optical image of plate (PSC70:111) from a 19th century daguerreotype from the National Gallery of Canada. (B–F) μ-XRF images of the Hg (Lα), Au (Lα), Ag (Lα), Fe (Kα), and Cu (Kα) distributions collected at Cornell High Energy Synchrotron Source (CHESS). Micro-XRF map for Hg collected at an incident energy of 13025 eV, a pixel size of 20 × 20 μm, and a working distance of 2 mm.

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