David Simeone

TL;DR: In this article, the authors consider the extensive experimental and computer simulation studies that have been performed over the past several decades on what the nature of the primary damage is, and provide alternatives to the current international standard for quantifying this energetic particle damage, the Norgett-Robinson-Torrens displacements per atom (NRT-dpa) model for metals.

TL;DR: Two new complementary displacement production estimators and atomic mixing functions are proposed that extend the NRT-dpa by providing more physically realistic descriptions of primary defect creation in materials and may become additional standard measures for radiation damage quantification.

TL;DR: In this article, the authors provided an illustration that density functional theory (DFT) + $U$ calculations may quantitatively describe transport phenomena in uranium dioxide, and investigated oxygen diffusion mechanisms using both ab initio calculations and experimental approaches mainly involving self-diffusion coefficient measurements.

TL;DR: In this paper, high-energy collision cascades in tungsten: Dislocation loops structure and clustering scaling laws A. E. Sand, S. L. Dudarev and K. Nordlund Cascade morphology transition in bcc metals.

TL;DR: In this article, the electron transfer from oxide into water is studied in nanoparticle suspensions of various oxides (SiO2, ZnO, Al2O3, Nd2O 3, Sm2O4, and Er2O5) by means of pulse and γ radiolysis, and the decay of the solvated electron is similar on the picosecond to nanosecond time scale in water and in these suspensions.