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12 April 2021 Detection and tracking of laser damage on LMJ vacuum windows by digital image correlation
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A novel original method is presented to detect and track laser damage sites on vacuum windows of the Laser MegaJoule (LMJ) facility. The method is based on spatial registration by Digital Image Correlation (DIC). It also involves corrections for gray level variations induced by variable lighting conditions. Using the present method, an efficient way is achieved to detect and follow laser damage sites as soon as they appear on the optical component. The developed tools offer the possibility of characterizing and predicting damage growth as a function of laser shot features.
Conference Presentation
© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Guillaume Hallo, Chloé Lacombe, Jérôme Néauport, and François Hild "Detection and tracking of laser damage on LMJ vacuum windows by digital image correlation", Proc. SPIE 11732, Dimensional Optical Metrology and Inspection for Practical Applications X, 117320C (12 April 2021);


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