A Decade of 3D Laser Scanning for Design Information Verification: Lessons Learned from Onkalo

Volume: 67, December 2025, pages 47-58

Authors: Carlos Sanchez-Belenguer¹, Erik Wolfart¹, Gunnar Bostrom¹, Vitor Sequeira¹, Laurent Velnom², Juha Pekkarinen², Peter Turzak², Elena Bellido-Vera², Mentor Murtezi², Theodora Kosmidou², Ali Zein², Simone Rocchi³, Yury Yudin³, Franziska Klingberg³, Shobha Paudel³, Robert Zweier³, Nivetha Balasankaran³, Melvin John³, and Martin Möslinger³

¹European Commission, Joint Research Centre (JRC), Ispra, Italy. [name.surname]@ec.europa.eu
²European Commission, Directorate-General for Energy, Luxembourg. [name.surname]@ec.europa.eu
³International Atomic Energy Agency, Wien, Austria [initial.surname]@iaea.org
 

Abstract: Since 2014, 3D laser scanning has been utilized for Design Information Verification (DIV) activities at the Onkalo disposal facility for spent nuclear fuel in Finland. High-precision static laser scanners are used for initial verification of tunnel sections following excavation, with the 3D model being incrementally updated as construction progresses. Mobile laser scanning is subsequently used for re-verification, enabling efficient detection of changes in the tunnel’s current status relative to the reference model acquired using static scanning. This paper presents a comprehensive overview of the past decade of DIV activities, outlining the generation of the final 3D model and discussing key results, implications, and recommendations for future applications.

Reference guideline: C. Sanchez-Belenguer, E. Wolfart, G. Bostrom, V. Sequeira, L. Velnom, J. Pekkarinen, P. Turzak, E. Bellido- Vera, M. Murtezi, T. Kosmidou, A. Zein, S. Rocchi, Y. Yudin, F. Klingberg, S. Paudel, R. Zweier, N. Balasankaran, M. John, M. Moslinger (2025), A Decade of 3D Laser Scanning for Design Information Verification: Lessons Learned from Onkalo, ESARDA Bulletin - The International Journal of Nuclear Safeguards and Non-proliferation, 67, 47-58. https://doi.org/10.3011/ESARDA.IJNSNP.2025.4