Confocal chromatic sensor for displacement monitoring in research reactor Marion Agoyan, Gary Fourneau, Guy Cheymol, Ayoub Ladaci, Hicham Maskrot, Christophe Destouches, Damien Fourmentel, Sébastien Gérand, Jérôme Gaillard-Groléas, Matthieu Desjacques et al. (2 more) EPJ Web Conf., 253 (2021) 04021 Published online: 19 November 2021 DOI: 10.1051/epjconf/202125304021