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Physicists use ion beams to detect art forgery

Date:
January 20, 2012
Source:
University of Notre Dame
Summary:
Nuclear physicists are using accelerated ion beams to pinpoint the age and origin of material used in pottery, painting, metalwork and other art. The results of their tests can serve as powerful forensic tools to reveal counterfeit art work, without the destruction of any sample as required in some chemical analysis.

University of Notre Dame nuclear physicists Philippe Collon and Michael Wiescher are using accelerated ion beams to pinpoint the age and origin of material used in pottery, painting, metalwork and other art.
Credit: Image courtesy of University of Notre Dame

University of Notre Dame nuclear physicists Philippe Collon and Michael Wiescher are using accelerated ion beams to pinpoint the age and origin of material used in pottery, painting, metalwork and other art. The results of their tests can serve as powerful forensic tools to reveal counterfeit art work, without the destruction of any sample as required in some chemical analysis.

Their research is featured on the front cover of a recent issue of Physics Today in an article titled, "Accelerated ion beams for art forensics." Wiescher and Collon say, "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.

"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 analyze 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," Wiescher and Collon continue.

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 analyze the works themselves, but also to determine origin, trade and migration routes as well as dietary information. As an example, 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 Mesoamerican figurines.

Wiescher, the Frank M. Freimann Professor of Physics, and Collon, associate professor of physics, are using their findings to teach undergraduates. Wiescher initially developed the undergraduate physics class called Physical Methods in Art and Archaeology, and now Collon teaches the class which attracts students from nearly every major. The course covers topics such as X-ray fluorescence and X-ray absorption, proton-induced X-ray emission, neutron-induced activation analysis, radiocarbon dating, accelerator mass spectroscopy, luminescence dating, and methods of archeometry.


Story Source:

The above story is based on materials provided by University of Notre Dame. Note: Materials may be edited for content and length.


Journal Reference:

  1. Philippe Collon, Michael Wiescher. Accelerated ion beams for art forensics. Physics Today, 2012; 65 (1): 58 DOI: 10.1063/PT.3.1408

Cite This Page:

University of Notre Dame. "Physicists use ion beams to detect art forgery." ScienceDaily. ScienceDaily, 20 January 2012. <www.sciencedaily.com/releases/2012/01/120120184237.htm>.
University of Notre Dame. (2012, January 20). Physicists use ion beams to detect art forgery. ScienceDaily. Retrieved July 31, 2014 from www.sciencedaily.com/releases/2012/01/120120184237.htm
University of Notre Dame. "Physicists use ion beams to detect art forgery." ScienceDaily. www.sciencedaily.com/releases/2012/01/120120184237.htm (accessed July 31, 2014).

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