On development of in-core fuel system for PWR reactors: Part I generation of macroscopic cross sections using SCALE 6.0 for use in nodal calculation. Braz. J. Rad. Sci. [Internet]. 2022 Feb. 18 [cited 2025 May 2];10(1). Available from: https://www.bjrs.org.br/revista/index.php/REVISTA/article/view/1738