TY - JOUR
T1 - Cascade fragmentation
T2 - deviation from power law in primary radiation damage
AU - Sand, Andrea Elisabet
AU - Mason, D. R.
AU - Backer, A. De
AU - Yi, X.
AU - Dudarev, S. L.
AU - Nordlund, Kai Henrik
PY - 2017
Y1 - 2017
N2 - The sizes of defect clusters, produced in materials by energetic ion or neutron impacts, are critically important input for models describing microstructural evolution of irradiated materials. We propose a model for the distribution of sizes of vacancy and self-interstitial defect clusters formed by high-energy impacts in tungsten, and provide new data from in situ ion irradiation experiments to validate the model. The model predicts the statistics of sub-cascade splitting and the resulting distribution of primary defects extending over the entire range of cluster sizes, and is able to provide initial conditions for quantitative multi-scale simulations of microstructural evolution..
AB - The sizes of defect clusters, produced in materials by energetic ion or neutron impacts, are critically important input for models describing microstructural evolution of irradiated materials. We propose a model for the distribution of sizes of vacancy and self-interstitial defect clusters formed by high-energy impacts in tungsten, and provide new data from in situ ion irradiation experiments to validate the model. The model predicts the statistics of sub-cascade splitting and the resulting distribution of primary defects extending over the entire range of cluster sizes, and is able to provide initial conditions for quantitative multi-scale simulations of microstructural evolution..
UR - https://researchportal.helsinki.fi/en/publications/78503fa0-264a-49d1-a7d7-736a8eb63ef8
U2 - 10.1080/21663831.2017.1294117
DO - 10.1080/21663831.2017.1294117
M3 - Article
JO - Materials Research Letters
JF - Materials Research Letters
SN - 2166-3831
ER -