Isotope Effects of Solid Hydrogenic Pellet Ablation

The isotope effects of ablation processes in fusion plasma for five combinations of solid isotopic hydrogenic pellets H₂, HD, D₂, DT, and T₂ have been studied for the first time to our knowledge. The results show that the modifications caused by isotope effects for pellet erosion speeds range from 1 for hydrogen pellet down to 0.487 for tritium pellet and are not negligible in ablation rate calculations. These effects can lead to deeper mass deposition and improved core fueling efficiency.