RAST-F is a new full-core analysis code based on the two-step approach that couples a multi-group cross-section generation Monte-Carlo code MCS and a multi-group nodal diffusion solver. To demonstrate the feasibility of using MCS/RAST-F for fast reactor analysis. this paper presents the coupled nodal code verification results for the MET-1000 and CAR-3600 benchmark cores. Three differ... https://www.roneverhart.com/Medusa-s-Gaze-West-Ladder/