Fig. 4
Comparison of (a) total dislocation lengths, (b) ½ < 111 > dislocation lengths, and (c) < 100 > dislocation lengths as a function of dose for tungsten with 0%, 1%, and 2% preexisting He. (d–g) Two-dimensional frames illustrating the evolution of defects, including vacancies (blue), interstitials (red), and dislocations (green for ½ < 111 > loops and pink for < 100 > loops), in W containing 2% He at four points indicated in (a). For better visualization, the simulation box is replicated twice in the x and z directions using periodic boundary conditions.
