Computer simulation of primary damage creation in displacement cascades in copper. I. Defect creation and cluster statistics

Primary Radiation Damage Formation

“…While comparisons of iron and copper have been thoroughly explored in the literature, 59,61,107,139 there have also been studies on materials such as zirconium, which is relevant to nuclear fuel cladding. 70,107,140,141 Figure 37 provides an example of the differences in point defect clustering between Fe and hcp Zr.…”

Overview of recent nuclear analyses for the Upper ECH launcher in ITER

“…3. Taking into account 0.63 fpy of planned ITER availability and the last outcomes of the radiation material science reinforced with the results of the Molecular Dynamics (MD) calculations [28], the counted number of the survived primary defects is less than predicted by the standard NRT model by the factor lying in a range of 0.2-0.3. As well as the neutron damage results for the EP launcher [13], the damages in the recent QO ECH launcher also do not affect the copper mirror properties and fatigue performance of the front steering mechanism.…”

Molecular Dynamics Simulations of Radiation Damage in Ti-Al based Structural Intermetallics

“…In order to facilitate calculations and optimise utilisation of HPC facilities, the methodology proposed in [14] is implemented. Energy conservation and the effectiveness of the algorithm based on [14] were tested earlier, and the algorithm itself was employed for MD simulations of radiation damage in copper [15], -zirconium [16,17] and studying the interaction of collision cascades with dislocations [18,19].…”

“…Three different techniques, namely the Lindemann spheres [20], the Wigner-Seitz cell analysis [21,22] and cluster analysis [15] were applied to identify residual point defects created in collision cascades. The threshold radius of 0.3a, where a is the equilibrium lattice parameter, was used in the Lindemann spheres, and the radius of the first coordination sphere was used for point defect cluster identification in cluster analysis.…”