Molecular dynamics assessment of primary damage efficiency for fusion relevant elements
Source abstract
Abstract
Accurate computational modeling of fusion reactors depends upon precise figures of merit for radiation damage. The Norgett-Robinson-Torrens displacements per atom (NRT-dpa) model, a gold standard parameter for characterizing primary damage in solids, has been shown to overestimate surviving Frenkel defects in materials under high-energy irradiation. Here, we investigate the NRT-dpa model at higher primary knock-on atom (PKA) energies for six pure metals of interest in fusion. We compute updated defect production efficiency values and athermal recombination corrected (ARC)-dpa efficiency parameters for each element, which can be used for increased accuracy in neutronics simulations and fitting other extensions to the NRT-dpa.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · Cold Fusion and Nuclear Reactions
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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