| Autor: |
Jackson, Bianca, Labaune, Julien, Bailleul-Lesuer, Rozenn, D'alessandro, Laura, Whyte, Alison, Bowen, John, Menu, Michel, Mourou, Gerard |
| Jazyk: |
angličtina |
| Rok vydání: |
2015 |
| ISSN: |
2095-2767 |
| Popis: |
The work presented in this article was performed at the Oriental Institute at the University of Chicago, on objects from their permanent collection: an ancient Egyptian bird mummy and three ancient Sumerian corroded copper-alloy objects. We used a portable, fiber-coupled terahertz time-domain spectroscopic imaging system, which allowed us to measure specimens in both transmission and reflection geometry, and present time- and frequency-based image modes. The results confirm earlier evidence that terahertz imaging can provide complementary information to that obtainable from x-ray CT scans of mummies, giving better visualisation of low density regions. In addition, we demonstrate that terahertz\ud imaging can distinguish mineralized layers in metal artifacts. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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