The effects of different Fe-He interatomic potentials on primary damage formation in Fe-1%He are investigated using molecular dynamics (MD) methods. Simulations of cascades produced by primary knock-on atoms (PKA) of energy Ep = 0.5-10 keV were performed at an irradiation temperature of 100 K. It is found that the Fe-He potentials have significant effects on the point defect creation and the formation of Fe-He interstitial clusters, whereas small effects on the formation of He-vacancy clusters.
Revised: October 7, 2011 |
Published: September 15, 2009
Citation
Yang L., X.T. Zu, F. Gao, H.L. Heinisch, and R.J. Kurtz. 2009.Effects of Fe-He potential on primary damage formation in Fe-1% He.Nuclear Instruments and Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms 267, no. 18:3046-3049.PNNL-SA-67029.