Behavior of tungsten under irradiation and plasma interaction
M Rieth, R Doerner, A Hasegawa, Y Ueda… - Journal of Nuclear …, 2019 - Elsevier
In 1959 the Journal of Nuclear Materials (JNM) was founded and is now celebrating its
Diamond Anniversary year. The present paper is part of a series in which single JNM …
Diamond Anniversary year. The present paper is part of a series in which single JNM …
Helium, hydrogen, and fuzz in plasma-facing materials
KD Hammond - Materials Research Express, 2017 - iopscience.iop.org
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 …
confinement nuclear fusion reactors, has been known for the last decade to form'fuzz'—a …
Recent advances in modeling and simulation of the exposure and response of tungsten to fusion energy conditions
Under the anticipated operating conditions for demonstration magnetic fusion reactors
beyond ITER, structural and plasma-facing materials will be exposed to unprecedented …
beyond ITER, structural and plasma-facing materials will be exposed to unprecedented …
Large-scale atomistic simulations of low-energy helium implantation into tungsten single crystals
Large-scale molecular dynamics simulations of post-implantation helium behavior in plasma-
facing tungsten single crystals reveal orientation-dependent depth profiles, surface evolution …
facing tungsten single crystals reveal orientation-dependent depth profiles, surface evolution …
[HTML][HTML] Morphologies of tungsten nanotendrils grown under helium exposure
K Wang, RP Doerner, MJ Baldwin, FW Meyer… - Scientific reports, 2017 - nature.com
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 plasma-facing materials in a magnetic fusion energy device. We have grown …
Challenges and opportunities of modeling plasma–surface interactions in tungsten using high-performance computing
BD Wirth, KD Hammond, SI Krasheninnikov… - Journal of Nuclear …, 2015 - Elsevier
The performance of plasma facing components (PFCs) is critical for ITER and future
magnetic fusion reactors. The ITER divertor will be tungsten, which is the primary candidate …
magnetic fusion reactors. The ITER divertor will be tungsten, which is the primary candidate …
[HTML][HTML] Theoretical model of helium bubble growth and density in plasma-facing metals
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 …
for high-pressure helium bubbles in plasma-facing tungsten. The model is a good match to …
[HTML][HTML] Helium aggregation and surface morphology near grain boundaries in plasma-facing tungsten
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 …
helium with grain boundaries. Model systems with grain boundary planes perpendicular to …
Effect of starting microstructure on helium plasma-materials interaction in tungsten
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 …
subjected to tremendous fluxes of ions, heat, and neutrons. The response of PFMs to the …
Helium flux effects on bubble growth and surface morphology in plasma-facing tungsten from large-scale molecular dynamics simulations
KD Hammond, IV Naeger, W Widanagamaachchi… - Nuclear …, 2019 - iopscience.iop.org
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 …
facing tungsten using molecular dynamics. The simulations span two orders of magnitude …