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Heritage Science

Table 2 Layer thicknesses (µm)

From: Fading into the background: the dark space surrounding Vermeer’s Girl with a Pearl Earring

Layer

Cross-section: Sample 19

B-scan near Sample 19

Cross-section: Sample 21

B-scan near Sample 21

Cross-section: Sample 34

Varnish

–

29.72

–

33.51

20

Glaze

25

20–30

20

Underlayer

10–24

–

10

–

10–20

  1. Thickness range measured from cross-sections, compared to average MS-OCT physical thicknesses (corrected to refractive index of 1.5) from B-scans made near the sample sites
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