“…The same group also investigated the role of dislocation-forest interactions and crossslip using discrete dislocation dynamics (DDD) but without considering irradiation (Portelette et al 2020;Madec et al 2023). Their DDD outputs (interaction matrix coe cients) have recently been integrated into a crystal plasticity framework to investigate polycristalline UO 2 (Lindroos et al 2023). Absorption of vacancies at screw dislocations was simulated (Liu et al 2019) but the e ect on the mobility was not investigated.…”