Tungsten, the primary material under consideration as the divertor material in magnetic-
confinement nuclear fusion reactors, has been known for the last decade to form'fuzz'—a …

Nanotendril “fuzz” will grow under He bombardment under tokamak-relevant conditions on
tungsten plasma-facing materials in a magnetic fusion energy device. We have grown …

Tungsten is a promising plasma facing material for fusion reactors. Despite many favorable
properties, helium ions incoming from the plasma are known to dramatically affect the …

We present a theoretically-motivated model of helium bubble density as a function of volume
for high-pressure helium bubbles in plasma-facing tungsten. The model is a good match to …

We investigate helium flux effects on helium transport and surface evolution in plasma-
facing tungsten using molecular dynamics. The simulations span two orders of magnitude …

In a magnetic fusion energy (MFE) device, the plasma-facing materials (PFMs) will be
subjected to tremendous fluxes of ions, heat, and neutrons. The response of PFMs to the …

We conduct molecular dynamics simulations of helium in tungsten to study the interaction of
helium with grain boundaries. Model systems with grain boundary planes perpendicular to …

The nucleation and subsequent growth of helium bubbles in bulk tungsten is investigated
using molecular dynamics simulations. By considering a setting that includes the diffusion …

Tungsten (W) has been chosen as the primary plasma-facing material in nuclear fusion
reactors. However, when helium (He) ions are continuously irradiated, enormous amounts of …

One of the most critical challenges for the successful adoption of nuclear fusion power
corresponds to plasma-facing materials. Due to its favorable properties in this context (low …