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Heritage Science

Table 2 Scanning parameters for XRF maps collected from the NGC daguerreotype, the excitation energy is above the L3-edge of Ag (3351 eV) and the K-edges of S (2473 eV) and Cl (2822 eV)

From: Exploring tarnished daguerreotypes with synchrotron light: XRF and μ-XANES analysis

Figures

Incident energy (eV)

Pixel size (μm)

Dwell time (s)

Scan size (μm)

Fig. 5

3950

15 × 15

1.0

1600 × 1000

Fig. 6

40 × 40

1.0

2000 × 1200

Fig. 7

10 × 10

1.0

600 × 550

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