APOLLO2 and TRIPOLI4 solutions of the OECD VVER-1000 LEU and MOX assembly benchmark

► APOLLO2 MOC calculation schemes were tested for VVER UGd and MOXGd assemblies. ► Depletion and branch calculations were performed. ► The results are close to the Monte Carlo and deterministic reference solutions. ► The Linear Surface MOC gives accurate and computationally efficient solutions. ► The higher-order MOC in APOLLO2 can be recommended for industrial applications.