Advances in nuclear data development for moderator and reflector design at the European Spallation Source Douglas D. DiJulio, José Ignacio Marquez Damian, Thomas Kittelmann, Shuqi Xu, José Rolando Granada and Gunter Muhrer EPJ Web Conf., 298 (2024) 04002 Published online: 27 June 2024 DOI: 10.1051/epjconf/202429804002