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Bringing Motion to Art Galleries: Scanning X-ray Fluorescence with Newport Linear Stages

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Bringing Motion to Art Galleries: Scanning X-ray Fluorescence with Newport Linear Stages

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Elemental distribution maps are of great interest to the study of historical paintings as they allow investigation of the pigment use by the artist. They also enable imaging changes made in the painting during or after its creation and in some cases reveal hidden paintings that were over painted at a later time. X-ray fluorescence (XRF) is a non-destructive technique to obtain elemental distribution maps of historical paintings. In scanning XRF, the painting is locally irradiated by means of an X-ray beam upon which the emitted fluorescence radiation is recorded with an X-ray detector. By moving the painting through the beam (or the beam over the painting), the entire surface of the painting can be scanned sequentially for compositional analysis.

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