DEVELOPMENT OF MPACT FOR FULL-CORE SIMULATIONS OF MAGNOX GAS-COOLED NUCLEAR REACTORSBrian J. Ade, Nicholas P. Luciano, Andrew J. Conant, Cole A. Gentry, Shane G. Stimpson, Benjamin S. Collins, Kang Seog Kim and Robert MillsEPJ Web Conf., 247 (2021) 06041DOI: https://doi.org/10.1051/epjconf/202124706041