A technique called "photoacoustic infrared spectroscopy" is being used to assist in art restoration
DaVinci, Caravaggio, VanGogh and Monet are just a few of the artists whose works attract thousands of visitors every year. However these paintings often suffer from damage due to aging and exposure to the elements. What once was a masterpiece on a church ceiling or wall often requires a highly skilled restoration team to return it to its original form – a process which is being aided by researchers at McGill University in Quebec, who have used a technique called "photoacoustic infrared spectroscopy" to identify the composition of pigments used in art works.
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