Alguacil Orejudo, JavierCatalán Pérez, Juan PabloPalermo, IoleSosa, DavidLion, JorritWarmer, F.Sanz Gozalo, Javier2025-02-062025-02-062024J. Alguacil, J.P. Catalan, I. Palermo, D. Sosa, J. Lion, F. Warmer, J. Sanz, Fast generation of parametric neutronic models for stellarators. Coupling HeliasGeom and GEOUNED, Fusion Engineering and Design, Volume 203, 2024, 114470, ISSN 0920-3796, https://doi.org/10.1016/j.fusengdes.2024.1144700920-3796https://doi.org/10.1016/j.fusengdes.2024.114470https://hdl.handle.net/20.500.14468/25834The registered version of this article, first published in “ Fusion Engineering and Design, Volume 203, 2024", is available online at the publisher's website: Elsevier, https://doi.org/10.1016/j.fusengdes.2024.114470 La versión registrada de este artículo, publicado por primera vez en “ Fusion Engineering and Design, Volume 203, 2024", está disponible en línea en el sitio web del editor: Elsevier, https://doi.org/10.1016/j.fusengdes.2024.114470The operation of the Wendelstein 7-X has highlighted stellarators as potential fusion power reactors. As a consequence, the pre-conceptual design of the next HELIAS stellarator has started in the framework of EUROfusion. During these first stages, it is essential to assess the feasibility of various stellarator concepts. It is important to emphasize that these concepts can vary significantly in terms of their overall shape and allocation of space for each component, including the vacuum vessel, breeding blankets, among others. Although pre-conceptual neutronic analysis can be conducted using straightforward yet representative neutronic models, such as simplified multilayer models with minimal geometric details, the intricate shape of stellarators presents challenges to produce them quickly. This issue prevents the effective parametric optimization of the concepts, creating a bottleneck in the design of HELIAS. In order to overcome this problem, we are developing a computational workflow for the fast production of parametric stellarator neutronic MCNP models. This work presents the current status of the scheme composed of two steps: HeliasGeom for the production of parametric multilayer CAD models, and GEOUNED for the translation of these models to MCNP CSG neutronic models.eninfo:eu-repo/semantics/openAccess33 Ciencias TecnológicasFast generation of parametric neutronic models for stellarators. Coupling HeliasGeom and GEOUNEDartículoStellaratorGEUNEDHeliasGeomCADMCNPFast design iteration