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Synchrotron XRF spectroscopy for reading salt-encrusted cuneiform tablets.
Mirko Surdi1, Pieter Tack2, Sylvia Lycke2,3
1Department of Languages and Cultures, Ghent University, Blandijnberg 2, 9000, Ghent, Belgium. mirko.surdi@ugent.be.
Scientific Reports
|January 26, 2025
Summary
Non-invasive synchrotron radiation X-ray fluorescence (SR-XRF) spectroscopy recovers unreadable cuneiform texts damaged by salt. This method preserves the historical integrity of ancient clay tablets for future study.
Area of Science:
- Archaeometry
- Materials Science
- Cultural Heritage Preservation
Background:
- Cuneiform tablets, crucial ancient Near Eastern records, degrade due to salt damage from millennia of burial.
- Salt migration obscures inscriptions, rendering historical texts unreadable.
- Conventional restoration methods irreversibly alter tablet chemistry.
Purpose of the Study:
- To develop and apply a non-invasive technique for reading salt-damaged cuneiform tablets.
- To preserve the physicochemical integrity of historical artifacts.
- To enable future scientific analyses of cuneiform inscriptions.
Main Methods:
- Synchrotron radiation X-ray fluorescence (SR-XRF) spectroscopy was employed to analyze salt-covered cuneiform tablets.
- This advanced analytical technique allowed for the detection of underlying inscriptions without physical alteration.
Main Results:
- SR-XRF successfully recovered previously unreadable cuneiform texts.
- The analysis was performed without causing any irreversible changes to the tablets' composition.
- Previously obscured inscriptions were made legible through this non-destructive method.
Conclusions:
- Non-invasive SR-XRF spectroscopy is a vital tool for the preservation and study of cuneiform tablets.
- This method safeguards the historical and material integrity of cultural heritage artifacts.
- It opens new avenues for deciphering and analyzing ancient texts without compromising their authenticity.

