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 …
Growth of fiberform nanostructures on metal surfaces by helium plasma irradiation
Helium plasma irradiation to various metals leads to peculiar morphology changes as
forming fiberform nanostructures called fuzz when a certain set of conditions is satisfied. In …
forming fiberform nanostructures called fuzz when a certain set of conditions is satisfied. In …
He-ion induced surface morphology change and nanofuzz growth on hot tungsten surfaces
FW Meyer - Journal of Physics B: Atomic, Molecular and Optical …, 2018 - iopscience.iop.org
Tungsten has been recently chosen as the divertor material in ITER and is a leading
candidate for use in DEMO and future fusion reactors. Linear plasma device and laboratory …
candidate for use in DEMO and future fusion reactors. Linear plasma device and laboratory …
Helium flux effects on bubble growth and surface morphology in plasma-facing tungsten from large-scale molecular dynamics simulations
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 …
Interaction between hydrogen and helium in tungsten successively exposed by helium and hydrogen plasma
T **a, Z Jiang, Z Wang, Y Shi, X Ren, M Wang… - Journal of Nuclear …, 2023 - Elsevier
The modification of surface, distribution of helium bubbles and the behavior of helium
release are reported through a careful investigation on tungsten samples which were …
release are reported through a careful investigation on tungsten samples which were …
Helium retention in tungsten under plasma and ion beam irradiation and its impact on surface morphology
Y Gasparyan, S Ryabtsev, V Efimov… - Physica …, 2020 - iopscience.iop.org
Helium (He) is a product of deuterium-tritium (DT)-fusion reaction and will be a natural
impurity in DT plasma in future fusion devices. He retention in tungsten irradiated by plasma …
impurity in DT plasma in future fusion devices. He retention in tungsten irradiated by plasma …
Molecular dynamics study on the origin of fuzz structure on tungsten surface
J Wang, D Liu, Z Guo, B He, W Dang - Journal of Nuclear Materials, 2021 - Elsevier
Molecular dynamics was used to investigate the migration of He–V cluster and the
irradiation of He on W (110) surface. Our research shows that the He-V complex can still …
irradiation of He on W (110) surface. Our research shows that the He-V complex can still …
Evolution behavior of helium bubbles and thermal desorption study in helium-charged tungsten film
L Wang, T Hao, BL Zhao, T Zhang, QF Fang… - Journal of Nuclear …, 2018 - Elsevier
In order to investigate the evolution behavior of the formation and growth of He bubble,
helium-charged W films have been prepared by radio frequency (RF) magnetron sputtering …
helium-charged W films have been prepared by radio frequency (RF) magnetron sputtering …
Quantitatively measuring the influence of helium in plasma-exposed tungsten
Tungsten samples are exposed to 3 He plasma to quantify their helium retention behavior.
The retention saturates quickly with helium fluence and increases only slightly from 4.3× 10 …
The retention saturates quickly with helium fluence and increases only slightly from 4.3× 10 …
[HTML][HTML] Characterization of helium retention in the inhomogeneous co-deposited layers using a long pulse laser induced ablation-quadrupole mass spectroscopy
Y Lyu, Z He, XY Wang, X Bai, C Li, D Wu, R Hai… - Nuclear Materials and …, 2022 - Elsevier
In this work, a spatially lateral-resolved study of the co-deposition of helium (He) and
aluminum (Al) in non-uniform layers is carried out by a long pulse Laser-Induced Ablation …
aluminum (Al) in non-uniform layers is carried out by a long pulse Laser-Induced Ablation …