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Journal of Imaging, Volume 7, Issue 9
September 2021 - 31 articles
Cover Story: Photoacoustic imaging is a rapidly expanding diagnostic technique which is based on the formation of ultrasonic waves following the absorption of pulsed optical radiation, to provide in-depth information within turbid media. In this study, we evaluate the capabilities of a reflection-mode photoacoustic imaging prototype as regards the revelation of hidden graphite layers covered by various paints in thick artwork mock-ups. We have demonstrated that the highly transmissive photoacoustic waves can recover underlying sketches with up to 8 times improved contrast compared to standard near-infrared images, paving thus the way to further relevant applications in the field of cultural heritage diagnostics. View this paper
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J. Imaging - ISSN 2313-433X