無中文出處，這是英國皇家期刊正式發表過的文章

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https://royalsocietypublishing.org/doi/10.1098/rsif.2020.0686


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Combined computed tomography and position-resolved X-ray diffraction of an
intact Roman-era Egyptian portrait mummy
S. R. Stock, M. K. Stock and J. D. Almer
Published:25 November 2020   https://doi.org/10.1098/rsif.2020.0686
Abstract

Hawara Portrait Mummy 4, a Roman-era Egyptian portrait mummy, was studied
with computed tomography (CT) and with CT-guided synchrotron X-ray
diffraction mapping. These are the first X-ray diffraction results obtained
non-invasively from objects within a mummy. The CT data showed human remains
of a 5-year-old child, consistent with the female (but not the age) depicted
on the portrait. Physical trauma was not evident in the skeleton. Diffraction
at two different mummy-to-detector separations allowed volumetric mapping of
features including wires and inclusions within the wrappings and the skull
and femora. The largest uncertainty in origin determination was approximately
1.5 mm along the X-ray beam direction, and diffraction- and CT-determined
positions matched. Diffraction showed that the wires were a modern dual-phase
steel and showed that the 7 ×  5 ×  3 mm inclusion ventral of the abdomen was
calcite. Tracing the 00.2 and 00.4 carbonated apatite (bone's crystalline
phase) reflections back to their origins produced cross-sectional maps of the
skull and of femora; these maps agreed with transverse CT slices within
approximately 1 mm. Coupling CT and position-resolved X-ray diffraction,
therefore, offers considerable promise for non-invasive studies of mummies.

※ 編輯: GETpoint (61.228.92.56 臺灣), 11/26/2020 22:29:38

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