Shahram Sharafat

TL;DR: In this paper, the authors explored novel concepts for fusion chamber technology that can substantially improve the attractiveness of fusion energy systems, including the potential for: (1) high power density capability; (2) higher plasma β and stable physics regimes if liquid metals are used; (3) increased disruption survivability; (4) reduced volume of radioactive waste; (5) reduced radiation damage in structural materials; and (6) higher availability.

TL;DR: In this paper, a Kinetic Monte Carlo approach is used to simulate surface pore formation in annealing of helium implanted tungsten, and results of the KMC simulations illustrate the rapid formation of very large helium bubbles and surface pores.

TL;DR: In this article, a theoretical model is developed to describe helium transport and clustering during irradiation, and analytical expressions for the effective diffusion coeficient of helium are derived, where the result is determined by the dominant release mechanism of helium bound in vacancies-thermal detrapping, replacement by the self-interstitial or direct displacement.

TL;DR: In this article, a multiscale helium transport model by coupling spatially-resolved kinetic rate theory (KRT) with kinetic Monte Carlo (KMC) simulation is presented to model helium bubble nucleation and growth.

TL;DR: In this article, the authors present the state of DCLL development in the US including recent design modifications and results from recent RD Pb-17Li material capability and infiltration studies; simulations of MHD Pb−17Li flow characteristics and of resultant temperature distributions; and the analysis of FCI stress states based on these thermal loads.