CT imaging used to examine hidden face in Nefertiti bustApril 1st, 2009 - 12:18 pm ICT by ANI
Washington, April 1 (ANI): Researchers, using CT imaging to study a priceless bust of Nefertiti, have uncovered a delicately carved face in the limestone inner core and gained new insights into methods used to create the ancient masterpiece and information pertinent to its conservation.
“We acquired a lot of information on how the bust was manufactured more than 3,300 years ago by the royal sculptor,” said the study’s lead author Alexander Huppertz, M.D., director of the Imaging Science Institute in Berlin, Germany.
“We learned that the sculpture has two slightly different faces, and we derived from interpretation of the CT images how to prevent damage of this extremely precious art object,” he added.
Nefertiti, the wife of the Egyptian pharaoh Akhenaten, was the most renowned Great Royal Wife of all 31 Egyptian dynasties.
Considered one of the greatest finds of ancient Egypt, the bust of Nefertiti was discovered in 1912, during excavation of the studio of famous royal sculptor Thutmose.
The Nefertiti bust consists of a limestone core covered in layers of stucco of varying thickness.
The bust was examined using CT for the first time in 1992, but recent advances in CT technology allowed the researchers to analyze the statue in 2007 with greater precision.
“CT has changed significantly since 1992,” Dr. Huppertz said. “We can now acquire three-dimensional (3-D) images at a much higher resolution,” he added.
Dr. Huppertz and colleagues used a 64-section spiral CT technique with submillimeter section thickness to examine the bust and assess its conservation status, gain information on its creation and provide a 3-D surface reformation of the inner limestone sculpture.
The results showed that a multi-step process was used to create the sculpture.
The stucco layer on the face and ears is very thin, but the rear part of the reconstructed crown contains two thick stucco layers.
CT findings also may be important in preventing future damage to the bust.
The findings of multiple, varying layers of stucco, as well as fissures in the shoulders, lower surface of the bust and rear of the crown, indicate vulnerable areas requiring very careful handling, and pressure on the layers of thick stucco is to be avoided.
“Noninvasive CT technology and very advanced 3-D post-processing tools allow us greater insight into the internal composition and conservation status of the sculpture,” Dr. Huppertz said. “This knowledge will greatly contribute to the preservation of this priceless antiquity,” he added. (ANI)
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