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Ion beams may serve as forensic tool to reveal counterfeit artwork

Washington, Sat, 21 Jan 2012 ANI

Washington, Jan 21 (ANI): Scientists have used accelerated ion beams to pinpoint the age and origin of the material used in pottery, painting, metalwork and other forms of art.

 

The results of the tests, conducted by Philippe Collon and Michael Wiescher from the University of Notre Dame, can serve as powerful forensic tools to reveal counterfeit art work, without the destruction of any sample as required in some chemical analysis.

 

"Art experts play an important role in identifying the style, history and context of a painting, but a solid scientific basis for the proper identification and classification of a piece of art must rely on information from other sources," the researchers said.

 

"A host of approaches with origins in biology, chemistry and physics have allowed scientists and art historians not only to look below a painting's or artifact's surface, but also to analyse in detail the pigments used, investigate painting techniques and modifications done by the artist or art restorers, find trace materials that reveal ages and provenances, and more," they said.

 

The information that is revealed can shed light on trading patterns, economic conditions and other details of history. For example, the amount of silver in Roman coins can indicate the degree of inflation in the ancient economy.

 

Laboratories in Europe, including several in Italy and one in the basement of the Louvre in Paris, have accelerators dedicated to the forensic analysis of art, and archaeological artifacts.

 

These accelerator-based techniques have allowed not only to analyse the works themselves, but also to determine origin, trade and migration routes as well as dietary information.

 

The analysis of the ruby eyes in a Babylonian statue of the goddess Ishtar using the Louvre's accelerator showed that the rubies came from a mine in Vietnam, demonstrating that trade occurred between those far-apart regions some 4,000 years ago.

 

At Notre Dame, researchers are using proton-induced x-ray emission (PIXE) and Accelerator Mass Spectroscopy (AMS) to study artifacts brought by local archeologists, Native American cultures in the American Southwest and the Snite Museum of Art extensive collection of Mezzo-American figurines.

 

The study has been published in Physics Today. (ANI)

 


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