UKAEA Journals

Showing 1 - 3 of 3 Journals Results
2019
UKAEA-CCFE-PR(19)37

The diffusion of defects in crystalline materials governs macroscopic behaviour in a wide range of processes, including alloying, precipitation, phase transformation, and creep. In real materials, intrinsic defects are unavoidably bound to static trapping centres such as impurity atoms, meaning that their diffusion is controlled by the de-trapping …

Published
2017
CCFE-PR(17)57

Quantum dynamics within solids is usually restricted to low mass particles such as electrons and muons, or single atoms of light elements such as hydrogen. In this letter we report observation of the quantum-assisted motion of self-interstitial atom clusters in tungsten (each of mass 184 Da), travelling distances of several nanometres between trapp…

Preprint
2005

The analysis of equilibrium conditions might be irrelevant to determine the importance of a certain set of atomic data. We show, that in non-equilibrium and optically thick plasmas intercombination transitions between highly excited states as well as higher order dielectronic satellite transitions are of extraordinary importance for diagnostics. In…

Published